The Mediating Role of Perceived Social Support in the Relationships Between General Causality Orientations and Locus of Control With Psychopathological Symptoms Research Reports The Mediating Role of Perceived Social Support in the Relationships Between General Causality Orientations and Locus of Control With Psychopathological Symptoms İhsan Dağ a, Gamze Şen* a [a] Department of Clinical Psychology, Hacettepe University, Ankara, Turkey. Abstract The main aim of this study is to investigate the mediator role of perceived social support in the relationship between general causality orientations and locus of control with psychopathological symptoms. Total 751 participants were consisted of 558 female ages between 17 and 36 (Female M = 19.03, SD = 0.09) (74.3%), 192 male ages between 17 and 37 (Male M = 20.71, SD = 0.17) (25.6%) and a participant who did not provide any gender information. We used the General Causality Orientations Scale (GCOS) and Locus of Control Scale (LOCS) in order to understand the basic motivation for the emergence of behavior. Beck depression Inventory (BDI) used to evaluate the psychological symptoms for depression, Maudsley Obsessive Compulsive Inventory (MOCI) for obsessive-compulsive symptomology and Brief Symptom Inventory (BSI) for overall psychological distress and finally to evaluate mediating role of social support used the Perceived Social Support Scale (PSSS). According to the results, having internal locus of control and autonomy orientation have shown positive effect to statistically significant predictors for psychological symptomology, having external locus of control and impersonal orientation have shown negative effect. Perceived social support was found to be suited for the role of partial mediator, and social support from friends was found to have more positive roles than social support from family. In conclusion, exceedingly considerable to conduct further research in order to contribute to the understanding of the mediating role of general causality orientations and locus of control with psychopathology symptomology. Keywords: locus of control, perceived social support, psychological symptoms, general causality orientations, OCD, depression Europe's Journal of Psychology, 2018, Vol. 14(3), 531–553, doi:10.5964/ejop.v14i3.1563 Received: 2017-11-17. Accepted: 2018-02-26. Published (VoR): 2018-08-31. Handling Editors: Vlad Glăveanu, Department of Psychology, Webster University Geneva, Geneva, Switzerland; Nicholas A. Kuiper, University of Western Ontario, London, Canada *Corresponding author at: Department of Clinical Psychology, Hacettepe University, Beytepe Campus, 06580, Ankara, Turkey. E-mail: gamzesen@hacettepe.edu.tr This is an open access article distributed under the terms of the Creative Commons Attribution License (https:// creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Causality orientations, as proposed in Self Determination Theory (SDT), differ from Rotter’s locus of control in respect to their emphasis on the causality of behaviors. Locus of control, which was proposed by Rotter (1966) and implemented in social learning models, is one of the prominent concepts in understanding the cognitive processes of behavior (Rotter, 1966; Skinner, 1996). According to the locus of control concept, individuals are motivated to behave in a specific pattern when they feel that pattern of behaviors will be subsequently rein- forced. When these individuals acknowledge the positive or negative outcomes of self-behaviors, they tend to expect similar outcomes from similar behaviors in advance, and so these behaviors become generalized. Con- sequently, individuals might gain a set of expectations (belief systems) about the origin of reinforcements, which are either dependent solely on themselves or are external in origin, such as chance, fate, or other exter- Europe's Journal of Psychology ejop.psychopen.eu | 1841-0413 https://creativecommons.org/licenses/by/3.0/ https://creativecommons.org/licenses/by/3.0/ https://creativecommons.org/licenses/by/3.0/ https://ejop.psychopen.eu/ https://ejop.psychopen.eu/ https://www.psychopen.eu/ nal forces. While the first situation is considered as an internal locus of control, the second situation is taken considered as representing an external locus of control. As the appearance of locus of control coincides with self-determination theory, Heider (1958) and deCharms (1968) described the source of behaviors’ as being internal, external, and impersonal. In the following years, Deci and Ryan (1985) studied these terms along with causality orientations, describing them as autonomous, control, and impersonal, respectively. General causality orientations are considered as a set of concepts ac- counting not only internal processes, but also external processes and motivational states. Individuals who fol- low autonomous orientations initiate or modify their behavior according to their own motives and objectives. These individuals behave through their own choice and tend to acknowledge the origin of their behaviors as the self. The control orientation can be initiated or modified, externally like awarding or internally as “I should do” or “this should be done”. While these individuals seek to find external control, they also acknowledge their sur- rounding environment as controlling. Conversely, in impersonal orientations, initiation and modification of be- haviors are under the control of another individual. These individuals do not possess a set of beliefs allowing them to think that they can accomplish objectives and goals by themselves; their behaviors are defined as non- motivated and non-determined (Deci & Ryan, 1985). It is important to point out the distinction between the causality orientations of self-determination theory and the locus of control concept proposed by Rotter (1966). According to locus of control, the source of behavior is de- pendent on the pattern of reinforcement (Rotter, 1966, 1975, 1990). On the other hand, deCharms (1968) pro- posed that either the source is internal cognitive processes and personal choices, or external pressure or force are the determining factors. In short, while Rotter (1966) focused on the outcome of behavior deCharms poin- ted out the importance of priming factors on behaviors. There are several publications in the literature about the importance of locus of control within psychopathologies (Baydoğan & Dağ, 2008; Cheng et al., 2013; Dağ, 1992; Gülüm & Dağ, 2014). However, there are few studies about the priming factors of behavior and their rela- tion to psychological symptoms (Brockelman, 2009; McGregor, McAdams, & Little, 2006). Studying the origin of behaviors through a combination of both viewpoints (locus of control and causality orientations) which provide different explanations is very important in broadening current understanding and increasing clarification. Several important studies point out the importance of the genotype-environment relationship with respect to psychological symptoms. Despite similar environments, behaviors have been shown to vary greatly among indi- viduals. As the behavioral tendencies and motivational states of individuals who experience similar environ- ments cannot be assessed without an internal and external concept of control (Deci & Ryan, 1985, 2000; McAdams & Olson, 2010; Pelletier et al., 1999; Ryan, Deci, & Grolnick, 1995), the environmental impacts on psychological symptoms, such as positive and negative social support, cannot be separated from the personal concept of control, or motivational states (Deci & Ryan, 1985; Yıldırım, 2004a). In this respect, we have ac- knowledged social support as variable in order to understand the perception of environment in our study. One purpose of every society is to convey its thought system and values to young people (Yörükoğlu, 1992). Although the expected behavior patterns of young people are evident in every culture, these expectations may differ due to differences between each culture (Akbağ, Sayıner, & Sözen, 2005). The young people involved in our study are thought to be shaped by their culture, and their perceptions of themselves and their environment are shaped the societal expectations that they grew up with and the environment in which they current live. In this sense, Turkey has a rich cultural structure in terms of shaping young people’s perception of social support. SDT, Locus of Control and Psychopathological Symptoms 532 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Procidano and Heller (1983) defined social support as an individual’s own subjective judgment about whether they have enough social support to function. Social support has been studied extensively from different per- spectives (Caplan, 1973; Lewin, 1951). In following studies, psychological symptoms and well-being have been investigated with regard to social support, and social support has been found to significantly decrease psycho- logical symptoms (Wight et al., 2006; Yıldırım, 2004a). Self Determination Theory also proposes that with social support, personal well-being is expected to improve (Deci & Ryan, 1985). However, the tendency to show psy- chological symptoms in individuals with different personalities has not been studied so far in respect to role of social support. Within this framework, the perception of social support is going to be studied in relation to psy- chological symptoms with general causality orientations and locus of control. Until now, discussion of the dis- tinctions and similarities between general causality orientations and locus of control has been very limited in the literature. In this study, while the distinction between causality orientations and locus of control has been em- phasized, the relationship of these concepts with psychological symptoms is going to be investigated, with so- cial support as a mediating factor. Moreover, clarification of the role of social support — acknowledged as exter- nal factor — is thought to be an important mediator between the tendency for psychological symptoms with lo- cus of control and general causality orientations in which motivational state and internal/external control which lie in the base of both locus of control and causality orientations. Turkey is known as comprising both Western (personal) and Eastern (community) psycho-cultural values (Kağıtçıbaşı, 2005; Sayın, 1987). Owing to the socio-cultural diversity of Turkey, getting data from different re- gion of the country will provide breadth of understanding in cultural aspect. The period of adolescence is the period when the perception of social support goes from family to friend. It is important for the adolescents to support from both family and friends in Turkish culture (Yörükoğlu, 1992). For this reason, our study has been conducted with participants who have were bachelor students with an age range of 17 to 37 in order to best observe the effect of social support. In this study, participants are assessed for emerging psychological symp- toms along with general causality orientations and locus of control, with social support being a partial mediator. In order to expand the scope of study and investigate different cultural backgrounds, students from 10 different Turkish Universities have been incorporated into the study. Methods Participants To conduct this research, 799 undergraduate students (568 Female, 227 Male, 4 did not want to specify gen- der) were recruited. Participants in different Universities were reached by random assignment and participation in the research is voluntary. Permission has already been granted for the application from these universities. The presence of the participant's reported psychiatric diagnosis is the only criterion for exclusion. The data of 16 participants were not included in the study, because they had a psychiatric diagnosis and were on medica- tion. Once the rest of the data is obtained, the homogeneity of the variances and normal distributions from the basic assumptions of the statistic was tested. Subsequently, the data of the participants who were outside the normal distribution were examined. It was found that these participants responded randomly or left blank to an unacceptable level. According to results of the analysis therefore, the data of 32 participants outside the normal distribution were removed from the study, resulting in a final sample of 751 comprising 558 females (74.3%), Dağ & Şen 533 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ 192 males (25.6%), and 1 participant with unknown gender. The demographic distribution of participants is shown in Table 1a and Table 1b. Table 1a Sample Distribution of Age, and Gender Gender N Minimum age Maximum age M SD Female 558 17 36 19.93 2.32 Male 192 17 37 20.71 2.38 Total 750 17 37 20.14 2.36 Table 1b Sample Distribution of University University Region Participants Percent Erzincan University Eastern Anatolia 31 4.1 Gazi University Central Anatolia 89 11.9 İzmir University Aegean Region of Anatolia 100 13.3 Konya University Central Anatolia 76 10.1 Çukurova University Mediterranean region of Anatolia 33 4.4 İstanbul Bilim University Marmara Region of Anatolia 100 13.3 Antalya University Mediterranean region of Anatolia 92 12.3 Ufuk University Marmara Region of Anatolia 46 6.1 Dicle University Southeastern Region of Anatolia 87 11.6 Ondokuzmayıs University Black sea Region of Anatolia 97 12.9 Total 751 100.0 Measures and Materials General Causality Orientation Scale (GCOS; Deci & Ryan, 1985): Autonomy, control, and impersonal orienta- tions were measured by the GCOS (Deci & Ryan, 1985); a Turkish adaptation of the scale was developed by Şen and Dağ (2016). The original GCOS consisted of 3 subscales and 40 items which comprise autonomous orientations (16 items), impersonal orientations (14 items), and control orientations (10 items). Each item of the GCOS is rated on a 7-point scale. The reliability and validity of the GCOS has been demonstrated (Şen & Dağ, 2016). In this study, Cronbach’s alpha values are .86 for autonomy, .71 for control and, .76 for impersonal; the test-retest coefficient throughout a 3-week period was .81 for the total scale. The total variance of the entire scale is reported as 32.4%. Locus of Control Scale (LOCS; Rotter, 1966): Following the pioneering works of Phares (1957) and James (1957), Rotter (1966) developed the scale with the aim of investigating the perspective (interior-exterior) of indi- viduals toward generalized control expectations. Moreover, the scale is established in way that it enables the measurement of general expectations or beliefs, to test whether reinforcements are under control of external (chance, fate) or internal forces. The Turkish adaptation of the Locus of Control Scale, developed by Dağ (2002), consisted of 5-point Likert-type scale with a total of 47 items. Higher total scores relates to the increase in external locus of control. The Turkish version of the scale had a Cronbach alpha coefficient of .92, and a SDT, Locus of Control and Psychopathological Symptoms 534 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ monthly interval test-retest reliability coefficient of .88 (Dağ, 2002). In this study the Cronbach’s alpha is .90 for the total scale. Beck Depression Inventory (BDI; Beck, Ward, Mendelson, Mock, & Erbaugh, 1961): The original scale was de- veloped (Beck et al., 1961), and is a widely used self-report tool for assessing depressive symptoms; it consists of 21 items, each of which is rated on a 4-point scale. The aim of this scale not to diagnose depression, but rather to identify the symptoms of depression and their severity. The Turkish adaptation of the scale was devel- oped by Hisli (1988, 1989). Turkish adaptation version was used for this research. Higher scores on the BDI represent the greater severity of depressive symptoms. Arkar and Şafak (2004) reported a Cronbach’s alpha value of .90 for the Turkish adaptation of the BDI. In this study the total scale had a Cronbach’s alpha value of .89. Perceived Social Support Scale (PSSS; Procidano & Heller, 1983): The original scale was developed by Procidano and Heller (1983) and aimed to measure the level of perceived social support from friends, family, and teachers. The Turkish adaptation of PSSS was developed by Yıldırım (1997) and consists of a total of 50 items. Only the family and friends’ aspects are used as a part of this research. Responses are recorded in a triple grading format (suits me = 1, partially suitable = 2, not suitable for me = 3). Cronbach’s alpha values of total PSSS, the friends and family aspects .93, .91, and .93 respectively; test-retest reliability of these were .89, .86, and .86 (Yıldırım, 2004b). In this study the Cronbach’s alpha for the total scale was .93. Maudsley Obsessive Compulsive Inventory (MOCI; Sanavio & Vidotto, 1985): The MOCI was used to investi- gate obsessive compulsive symptoms. The instrument was found to reliably discriminate between obsessional patients and normal controls, and between patients with anorexia nervosa versus those with anxiety disorders. The Turkish adaptation of the scale was developed by Erol and Savaşır (1988). The MOCI contains 37 items in a true-false format. The MOCI is a form of self-report scale, participants fill out themselves (Sanavio & Vidotto, 1985). Higherscores indicate a rise in obsessive-compulsive symptoms. In this study the Cronbach’s alpha val- ue for the total scale was .81. Brief Symptom Inventory (BSI; Derogatis, 1992): The BSI is an instrument that evaluates psychological distress and psychiatric disorders. The BSI is a 53-item self-report scale that uses a 5 point Likert scale (Derogatis, 1992; Şahin & Durak, 1994). Rising scores reflect an increase in symptom severity. The Turkish version of the BSI was found to consist of 5 factors during psychometric analysis: “Anxiety,” “Depression,” “Negative self,” “Somatization,” and “Hostility.” The Cronbach's alpha values of these factors were .87, .88, .87, .75, and .76 respectively. Procedure This study, which is a part of project founded by The Scientific And Technological Research Council Of Turkey (TUBITAK) (Project no.114K086), attained the necessary permissions from the Hacettepe University Ethics Commission. The aim of the main study is to determine the variables affecting the psychological well-being of the individuals at the university level and to test a model that assesses variables that have positive intermediary role. Owing to the total size of the results, the findings that include part of the study are presented in this re- search paper. Dağ & Şen 535 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ After obtaining written permission from the participating universities, questionnaire booklets were administered to participants during class by researchers. Booklets took approximately 45-50 minutes to complete. The scales were listed in a different order to remove the order effect. Participants were informed in writing about the study and written consent was obtained. When the data of the study were analyzed, the correlation values between the scales and the subscales were included in addition to the mean, standard deviation and standard error val- ues of the variables. Finally, path analysis was conducted and the model was tested via structural equation modeling. Data was analyzed using SPSS 20.0 and AMOS 23.0 software. Results Firstly, the data was examined to check the basic assumptions of multivariate statistics, namely: normality, line- arity, and homogeneity of variance. Once these assumptions had been verified, data analysis progressed to the next stage. Descriptive statistics for male and female subscale, PSSS, LOCS, and GCOS are shown in Table 2. Table 2 Descriptive Statistics for Male and Female Subscale, PSSS, LOCS, and GCOS Variable Female (558) Male (192) M SD SE M SD SE GCOS-AUTONOMY 90.59 11.51 0.48 83.85 14.47 0.41 GCOS-CONTROL 42.97 8.07 0.34 43.19 7.05 0.50 GCOS-IMPERSONAL 45.74 11.16 0.47 46.31 10.63 0.76 LOCS- INTERNAL 75.28 11.54 0.46 79.90 12.96 0.43 LOCS- EXTERNAL 46.91 9.91 0.43 45.91 10.51 0.51 LOCS-TOTAL 122.34 16.10 0.68 120.57 17.42 0.57 PSSS 42.29 8.36 0.36 45.92 11.10 0.80 PSSS-FRIENDS 16.12 3.80 0.16 18.08 5.12 0.37 PSSS-FAMILY 26.21 6.38 0.27 27.88 7.50 0.54 BDI 12.07 9.27 0.39 12.34 9.68 0.69 MOCI 14.93 5.61 0.23 13.74 5.81 0.42 BSI 57.83 34.93 0.65 58.20 31.65 0.53 Note. GCOS = General Causality Orientations Scales; LOCS = Locus of Control Scale; PSSS = Perceived Social Support Scale; BDI = Beck Depression Inventory; MOCI = Maudsley Obsessional-Compulsive Inventory; BSI = Brief Symptom Inventory. Otherwise, the correlations for general causality orientations, locus of control, perceived social support, depres- sive symptoms, psychological symptoms, and obsessive-compulsive symptoms are presented in Table 3. In the first model based on GCOS, three indicator variables (autonomous, control and impersonal orientation) were constructed using the parcel method based on exploratory factor analysis to show the latent variable (see Hall et al., 1999 for more information on the parcel method). In the second model on which the locus of control is based, two indicator variables (internal and external locus of control) were constructed using the parcel meth- od based on exploratory factor analysis to illustrate latent variables. Analyzes were made using the maximum likelihood method and based on the model testing. When assessing compliance indices, it was used in the compilation of Hooper, Coughlan, and Mullen (2008). Analyzes were made using structural equation models. SDT, Locus of Control and Psychopathological Symptoms 536 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Table 3 Correlation Matrix of Research Variables Variable 1 2 3 4 5 6 7 8 9 10 11 12 1. GCOS- impersonal - 2. GCOS-control .19** - 3. GCOS- autonomy -.13** .32** - 4. MOCI .30** .20** -.06 - 5. LOCS-total .25** .06 -.18** .23** - 6. LOCS- external .26** .23** -.07 .28** .79** - 7. LOCS- internal .13** -.16** -.27** .00 .70** .21** - 8. BSI .38** .13** .11** .46** .25** .34** .04 - 9. PSSS-family .18** -.03 -.17** .11** .11** .12** .05 .30** - 10. PSSS-friends .19** -.06 -.27** .11** .13** .01** .13** .25** .41** - 11. PSSS .22** -.05 -.24** .12** .14** .13** .09** .33** .91** .74** - 12. BDI .34** .04 -.17** .40** .23** .27** .09** .68** .32** .29** .23** - Note. GCOS = General Causality Orientations Scales; GCOS- impersonal = Impersonal Orientations; GCOS-control = Control Orientations; GCOS- autonomy = Autonomous Orientations; MOCI = Maudsley Obsessional-Compulsive Inventory; LOCS = Locus of Control Scale; BSI = Brief Symptom Inventory; PSSS = Perceived Social Support Scale; BDI = Beck Depression Inventory. *p < .05. **p < .01. Baron and Kenny (1986) proposed a set of concept to be examined for analysis of mediating role; which was used to investigate the mediating role of perceived social support in the relationship between locus of control and general causality orientations with psychological symptoms. Baron and Kenny (1986) laid out 4 step re- quirements that must be met to form a true mediation relationship. Accordingly, whether a variable act as a me- diator variable depends on whether it encounters a four-digit list of criteria. A number of regression analysis and Sobel tests are required to test these criteria. Using this method, path analysis was conducted to ascertain the mediating role of perceived social support in the relationship between locus of control and general causality ori- entations with psychological symptoms (Depressive symptoms, OCD symptomology, and general psychological symptoms). Detailed information of the analysis can be seen in Table 4, Results of the analysis for male and female can also be seen in Table 5. Dağ & Şen 537 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Ta bl e 4 P at h A na ly si s S um m ar y of G en er al C au sa lit y O rie nt at io ns a nd L oc us o f C on tr ol M ed ia to r (P S S S ) V ar ia bl e: S ub -d im en si on E ff ec t o f m ed ia to r va ri ab le o n pr ed ic te d va ri ab le (P sy ch ol og ic al S ym pt om s) D ep re ss iv e sy m pt om s O C D s ym pt om ol og y G en er al P sy ch ol og ic al S ym pt om s S ob el te st To ta l v ar ia nc e S ob el te st To ta l v ar ia nc e S ob el te st To ta l v ar ia nc e G en er al C au sa lit y O ri en ta tio n A ut on om y or ie nt at io n F am ily s up po rt -4 .1 5* * P ar tia l m od er at in g (1 4% ) -2 .4 6* * P ar tia l m od er at in g (1 0% ) -3 .9 5* * P ar tia l m od er at in g (1 0% ) F rie nd s up po rt -5 .6 5* * P ar tia l m od er at in g (1 8% ) -2 .7 9* * P ar tia l m od er at in g (1 0% ) -5 .5 4* * P ar tia l m od er at in g (6 % ) C on tr ol o ri en ta tio n F am ily s up po rt -0 .7 1 N on e -0 .6 9 N on e -0 .7 9 N on e F rie nd s up po rt -1 .9 3* P ar tia l m od er at in g (3 % ) -1 .6 5 N on e -1 .9 2* P ar tia l m od er at in g (3 % ) Im pe rs on al o ri en ta tio n F am ily s up po rt 4. 66 ** P ar tia l m od er at in g (1 3% ) 2. 55 ** P ar tia l m od er at in g (1 1% ) 4. 38 ** P ar tia l m od er at in g (1 5% ) F rie nd s up po rt 4. 51 ** P ar tia l m od er at in g (1 4% ) 2. 61 * P ar tia l m od er at in g (1 1% ) 4. 41 * P ar tia l m od er at in g (1 2% ) Lo cu s of C on tr ol In te rn al lo cu s of c on tr ol F am ily s up po rt 3. 04 ** P ar tia l m od er at in g (8 % ) 2. 16 * P ar tia l m od er at in g (6 % ) 2. 96 ** P ar tia l m od er at in g (8 % ) F rie nd s up po rt 1. 96 * P ar tia l m od er at in g (4 % ) 1. 69 N on e 1. 99 * P ar tia l m od er at in g (4 % ) E xt er na l l oc us o f c on tr ol F am ily s up po rt 1. 31 N on e 1. 21 N on e 1. 31 N on e F rie nd s up po rt 3. 38 ** P ar tia l m od er at in g (9 % ) 2. 33 ** P ar tia l m od er at in g (7 % ) 3. 31 ** P ar tia l m od er at in g (1 0% ) *p < .0 5. * *p < .0 1. SDT, Locus of Control and Psychopathological Symptoms 538 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Ta bl e 5 S um m ar y of P at h A na ly si s fo r G en er al C au sa lit y O rie nt at io ns a nd L oc us o f C on tr ol b y G en de r P re di ct in g va ri ab le D ep re ss iv e sy m pt om s O C D s ym pt om ol og y G en er al P sy ch ol og ic al S ym pt om s S ob el te st E xp la na tio n S ob el te st E xp la na tio n S ob el te st E xp la na tio n G en er al C au sa lit y O ri en ta tio n: P er ce iv ed S oc ia l S up po rt F ro m F am ily Fe m al e A ut on om y -3 .0 9* * P ar tia l m od er at in g -1 .9 7* * P ar tia l m od er at in g -3 .0 1* * P ar tia l m od er at in g C on tr ol -0 .2 4 N on e 0. 25 N on e -0 .2 4 N on e Im pe rs on al 2. 81 ** P ar tia l m od er at in g 2. 17 * P ar tia l m od er at in g 3. 86 ** P ar tia l m od er at in g M al e A ut on om y -1 .9 6* P ar tia l m od er at in g -1 .4 7 N on e 1. 92 * P ar tia l m od er at in g C on tr ol -1 .0 4 N on e -0 .9 5 N on e -1 .4 5 N on e Im pe rs on al 2. 14 * P ar tia l m od er at in g 1. 54 N on e 2. 08 * P ar tia l m od er at in g G en er al C au sa lit y O ri en ta tio n: P er ce iv ed S oc ia l S up po rt F ro m F ri en ds Fe m al e A ut on om y -5 .0 0* * P ar tia l m od er at in g -2 .1 6* P ar tia l m od er at in g -4 .1 4* * P ar tia l m od er at in g C on tr ol -1 .4 9 N on e -1 .2 8 N on e -1 .4 8 N on e Im pe rs on al 3. 28 ** P ar tia l m od er at in g 1. 98 * P ar tia l m od er at in g 3. 17 ** P ar tia l m od er at in g M al e A ut on om y -3 .1 5* * P ar tia l m od er at in g -2 .2 2* * P ar tia l m od er at in g -2 .9 0* * P ar tia l m od er at in g C on tr ol -0 .9 8 N on e -0 .9 4 N on e -0 .9 6 N on e Im pe rs on al 3. 13 ** P ar tia l m od er at in g 2. 21 * P ar tia l m od er at in g 3. 13 ** P ar tia l m od er at in g Lo cu s of C on tr ol : P er ce iv ed S oc ia l S up po rt F ro m F am ily Fe m al e In te rn al lo cu s of c on tr ol 3. 07 ** P ar tia l m od er at in g 1. 98 * P ar tia l m od er at in g 2. 98 ** P ar tia l m od er at in g E xt er na l l oc us o f c on tr ol 1. 54 N on e 1. 31 N on e 1. 52 N on e M al e In te rn al lo cu s of c on tr ol 1. 04 N on e 0. 94 N on e 1. 03 N on e E xt er na l l oc us o f c on tr ol 1. 56 N on e 1. 28 N on e 1. 54 N on e Lo cu s of C on tr ol : P er ce iv ed S oc ia l S up po rt F ro m F ri en ds Fe m al e In te rn al lo cu s of c on tr ol 2. 06 N on e 1. 58 N on e 2. 03 N on e E xt er na l l oc us o f c on tr ol 2. 68 N on e 1. 89 N on e 2. 62 ** P ar tia l m od er at in g M al e In te rn al lo cu s of c on tr ol 1. 67 * P ar tia l m od er at in g 1. 47 N on e 1. 63 N on e E xt er na l l oc us o f c on tr ol 2. 41 ** P ar tia l m od er at in g 1. 97 * P ar tia l m od er at in g 2. 29 ** P ar tia l m od er at in g *p < .0 5. * *p < .0 1. Dağ & Şen 539 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ According to the analysis, the measurement model was found to have adequate fit indices, resulting in no need for correction. In this case, the identical structural model and measurement overlap. In relation to the tested structural models, the relationships between locus of control and overall psychological symptoms, OCD symp- tomology, and depressive symptoms were tested with AMOS 23, and the explained variance values are shown in Figure 1. When the model solely was tested for females, a fit index (χ2(27, N = 558) = 569.059, p < .001, GFI = 0.94, AGFI = 0.93, NFI = 0.90, CFI = 0.92, RMSA = 0.066). The tested structural model’s relationship in terms of locus of control for males is shown in Figure 1. When the model alone is tested, it was found to have a fit index (χ2(64, N = 192) = 325.667, p < .001, GFI = 0.97, AGFI = 0.94, NFI = 0.84, CFI = 0.91, RMSA = 0.071) for psychological symptoms (Depressive symptoms, OCD symptomology, and general psychological symp- toms). Fit indices of the measurement model for locus of control and psychological symptoms (Depressive symptoms, OCD symptomology, and general causality orientations) are shown in Table 6, for females and males separately. Figure 1. The Mediating Role of Perceived Social Support in the Relationship Between Locus of Control and Psychological Symptoms. N.B: While emboldened significance values show the significant relations of males, other, non-emboldened values display the significant relationships for females. According to the tested structural models, the relationships between general causality orientations and overall psychological symptoms, OCD symptomology, and Depressive symptoms were tested with AMOS 23 and the explained variance values shown in Figure 2. When the model alone is tested, it was found to have a fit index (χ2(27, N = 558) = 469.987, p < .001, GFI = 0.96, AGFI = 0.93, NFI = 0.91, FCI = 0.94, RMSA = 0.069). The tested structural model’s relationships between general causality orientations and overall psychological symp- toms, OCD symptomology, and depressive symptoms were tested with AMOS 23 and the explained variance values for males are shown in Figure 2. When the model is examined in relation to psychological symptoms, it SDT, Locus of Control and Psychopathological Symptoms 540 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ was found to have a fit index (χ2 = 80.325, SD = 33, p < .001). Given the significant value (χ2(30, N = 192) = 469,987, p < .001, GFI = 0.97, AGFI = 0.94, NFI = 0.92, FCI = 0.94, RMSA = 0.078). Fit indices of the meas- urement model for general causality orientations and psychological symptoms (Depressive symptoms, OCD symptomology, and general causality orientations) are shown in Table 6 for females and males separately. Figure 2. The Mediating Role of Perceived Social Support in the Relationship Between General Causality Orientations and Psychological Symptoms. N.B: While emboldened significance values show the significant relations of males, other, non- emboldened values display the significant relationships for female. According to our results, when perceived social support from family has a partial mediating role in the relation- ship between autonomous orientation, impersonal orientation, and psychological symptoms (general psycho- logical symptoms, OCD symptomology, and depressive symptoms), control orientations do not play a signifi- cant role in any psychological symptoms. The variance explained by the mediating role of perceived social sup- port from family ranges from 10% to 15% When perceived social support from friends has a partial mediating role in the relationship between autonomous orientation, impersonal orientation, and psychological symptoms (general psychological symptoms, OCD symptomology and depressive symptoms), the variance explained by the mediating role of perceived social support from friends ranges from 3% to 18%. However, while perceived social support from friends has a partial mediating role in the relationship between control orientation and de- pressive symptoms, general psychological symptoms have a partial mediating role. On the other hand, it does not have a mediating role in the relationship between control orientations and OCD symptomology. Dağ & Şen 541 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Ta bl e 6 In de x of C om pl ia nc e M ea su re d by S tr uc tu ra l E qu at io n M od el in g (N = 7 50 , f em al e = 55 8, m al e = 19 2) P re di ct ed v ar ia bl e χ2 G FI A G FI N FI C FI R M S E A Lo cu s of c on tr ol Fe m al e D ep re ss io n χ2 (3 8, N = 5 58 ) = 17 8. 98 2 0. 96 0. 94 0. 94 0. 95 0. 06 6 O C D χ2 (3 8, N = 5 58 ) = 23 7. 88 5 0. 97 0. 95 0. 84 0. 86 0. 08 0 G en er al p sy ch ol og ic al s ym pt om s χ2 (3 3, N = 5 58 ) = 12 5. 53 2 0. 97 0. 95 0. 94 0. 96 0. 07 8 W ho le M od el χ2 (2 7, N = 5 58 ) = 56 9. 05 9 0. 94 0. 93 0. 90 0. 92 0. 06 6 M al e D ep re ss io n χ2 (3 2, N = 1 92 ) = 11 2. 97 4 0. 89 0. 86 0. 83 0. 80 0. 08 6 O C D χ2 (3 8, N = 1 92 ) = 12 2. 48 8 0. 92 0. 91 0. 82 0. 88 0. 08 4 G en er al p sy ch ol og ic al s ym pt om s χ2 (3 8, N = 1 92 ) = 12 6. 19 1 0. 95 0. 94 0. 87 0. 92 0. 08 6 W ho le M od el χ2 (6 4, N = 1 92 ) = 32 5. 66 7 0. 97 0. 94 0. 84 0. 91 0. 07 1 G en er al c au sa lit y or ie nt at io ns Fe m al e D ep re ss io n χ2 (1 6, N = 5 58 ) = 52 .7 97 0. 98 0. 96 0. 97 0. 98 0. 05 1 O C D χ2 (2 8, N = 5 58 ) = 69 .7 19 0. 96 0. 94 0. 94 0. 96 0. 05 2 G en er al p sy ch ol og ic al s ym pt om s χ2 (3 1, N = 5 58 ) = 11 3. 43 6 0. 97 0. 95 0. 96 0. 97 0. 06 9 W ho le M od el χ2 (2 7, N = 5 58 ) = 46 9. 98 7 0. 96 0. 93 0. 91 0. 94 0. 06 9 M al e D ep re ss io n χ2 (1 8, N = 1 92 ) = 53 .5 71 0. 97 0. 95 0. 98 0. 96 0. 05 9 O C D χ2 (2 9, N = 1 92 ) = 62 .1 29 0. 96 0. 94 0. 98 0. 97 0. 06 1 G en er al p sy ch ol og ic al s ym pt om s χ2 (3 3, N = 1 92 ) = 80 .4 25 0. 94 0. 93 0. 91 0. 94 0. 08 7 W ho le M od el χ2 (3 0, N = 1 92 ) = 46 9. 98 7 0. 97 0. 94 0. 92 0. 94 0. 07 8 N ot e. F or a ll χ2 te st s p < .0 01 . SDT, Locus of Control and Psychopathological Symptoms 542 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ According to the results, when perceived social support from family has a partial mediating role in the relation- ship between internal locus of control and psychological symptoms (general psychological symptoms, OCD symptomology, and depressive symptoms), external locus of control does not have a significant role in any psy- chological symptoms. The variance explained by the mediating role of perceived social support from family ranges from 4% to 8%. When perceived social support from friends has a partial mediating role in the relation- ship between internal locus of control, depressive symptoms, and general psychological symptoms, but it does not have any mediating roles in external locus of control and OCD symptomology. As a partial mediator, per- ceived social support from friends has a role in the relationship between external locus of control and psycho- logical symptoms. The explained variance of perceived social support from friends as a mediator ranges from 4% to 10%. Analysis among both genders revealed that while perceived social support from family plays a partial role in respect to the relationships of internal locus of control with OCD symptomology, depressive symptoms, and general psychological symptom levels for female, in the case of support received from friends, locus of control has taken solely a partial role in depressive symptoms and general psychological symptoms. Moreover, friends' support data did not show any significant relationships with OCD symptomology. When it comes to female, per- ceived social support from family has no significant mediating roles relating to external locus of control; but as a mediator, perceived social support from friends has a partial mediating role in the relationship between external locus of control and general psychosocial symptoms. In relation to men, perceived social support from family had no mediating role in the relationships of internal locus of control; however, as a mediator, perceived social support from friends has a partial mediating role in the relationship between internal locus of control and de- pressive symptoms. On the other hand, perceived social support from friends has a partial mediating role in the relationship between external locus of control and depressive symptoms, OCD symptomology, and general psychological symptoms. Discussion In our study, the relationship between general causality orientations and locus of control with psychological symptoms was analyzed while perceived social support was accounted as partial mediator. This kind of model has been studied for the first time in Turkey. The confusion about general causality orientations and locus of control, which has been discussed in the literature extensively (Soenens et al., 2005; Vansteenkiste & Sheldon, 2006), was clarified in our study. To underline the distinctive properties between these variables, each variable was analyzed separately and collectively as a partial mediator (Figure 1 and 2), and those analyses provided valuable insights about this distinction. The proportions of female and male participating in the study are not equal. In this respect, data was sub-cate- gorized according to gender and displayed separately. Analysis via structural equation modeling provided very well fitting indexes for both genders. Data obtained in this study was first analyzed according to general causali- ty orientations, then locus of control variables have been discussed in respect to sub-categories of social sup- port; support of family and friends. Moreover, the impact of culture was also evaluated in our study. Obtained data about general causality orientations in this study support and confirm the previous findings of Deci and Ryan (1985). In both studies, autonomous individuals showed a reduced tendency to experience psy- Dağ & Şen 543 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ chological symptoms. Moreover, the finding of an increased tendency toward psychological symptoms in imper- sonal individuals is also consistent with previous literature (Deci & Ryan, 1987, 2008; Brockelman, 2009; Sadabadi et al., 2011). In addition to this finding, social support, which has never been studied in this context as partial mediator, was demonstrated to decrease psychological symptoms in autonomous and impersonal indi- viduals. However, social support was not completely unnoticeable in individuals who are control oriented. In control oriented individuals, the source of social support was proven to be important. While social support was not a partial mediator when received from family, support from friends significantly improved psychological well- being and decreased depressive symptoms. The reason behind this result might be owing to the escalation of distance between generations in nuclear-families (Kağıtçıbaşı, 1970), lack of communication and problem solv- ing among family members (Cerit, 2007), increased clashes among family members during adolescence (Özgüven, 2001), and variations of support, interest, and communication of family depending on their socio- economic status (Genez Muluk, 2004; Kağıtçıbaşı et al., 2001; Ulusavaş, 1990). Moreover, since 84% of the individuals who participated in the study are bachelor students who are living with friends instead of family, the shift of social support from family to friends is considered to be an important factor about this finding (Hortaçsu et al., 1991; Lee, 2011). The impact of social support for individuals with an internal or external locus of control on psychological symp- toms was emphasized in our study. Support coming from family to individuals with internal locus of control exer- ted its effect on well-being by decreasing psychological symptoms. On the other hand, family support did not show any significant effect on individuals with external locus of control. This finding leads us to question wheth- er social support from family is suitable as a partial mediator because there are several studies showing that individuals with an external locus have a higher tendency to experience psychological symptoms (Baydoğan & Dağ, 2008; Dağ, 1992; Daniels & Guppy, 1994; Erol et al., 2000; Ryff, 1989). These circumstances indicate that an individual's perception of their family’s social support directly regulates psychological status as a partial me- diator. Moreover, the mediating roles of families' and friends' support between locus of control and psychologi- cal symptoms (depressive symptoms, OCD symptomology, and general psychological symptoms) was investi- gated via pathway analysis, and interpreted with reference to the previous literature. Although the theory is not in accordance with our study, we advise following studies to test alternative models in which the roles of varia- bles are switched for mediator role. Sub-categorical analysis of gender showed that only females demonstrated significant partial mediating roles for family social support in relationship between locus of control and psycho- logical symptoms. We think that this finding can be interpreted through the nature of internal locus of control. Internal locus of control combined with the beliefs of self-control might have diminished psychological symp- toms (Dağ, 1992; Meijer et al., 2002). In traditional Turkish families, female’s beliefs about self-control and pro- longation of well-being are thought to be highly correlated with families' social support. Cumulative analysis of families' social support revealed significant correlations between autonomy orientation, impersonal orientation, and internal locus of control with psychological symptoms. However, no significant cor- relation was found between control orientation and external locus of control with psychological symptoms. De- spite significant correlations reported in western literature about general causality orientations and locus of con- trol (Deci & Ryan, 1985, 1987; Williams et al., 1996), findings about impersonal orientations and external locus of control emphasize the importance of the distinction between these two personality types. Self Determination Theory, as it states initiation, regulation, and continuation of behavior are not only affected by external stimuli, but more importantly influenced from internal motivations. This provides important clues to clarify this our find- ings. Because impersonal orientation is affected by both consequences of behaviors and motivation (Deci & SDT, Locus of Control and Psychopathological Symptoms 544 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Ryan, 1985; Hagger & Chatzisarantis, 2011; Olesen, 2011; Olesen, Thomsen, Schnieber, & Tønnesvang, 2010). Especially, the conclusion, that external locus of control, which emphasizing external stimuli (social sup- port) and showing no significant correlation, and impersonal orientations, pointing out the importance of motiva- tion and internal stimuli and demonstrate significant correlation of interactive connection between internal and external processes. Moreover, the validated contributions of family support might be based on motivation trig- gered by external processes (Deci & Ryan, 1985; Koestner & Zuckerman, 1994). Discouraging children’s inde- pendence is frequently observed in families in Turkey, and more seriously, the independent personal develop- ment of children does seem to pose a threat to families (Kağıtçıbaşı, 1984). Owing to these phenomena, fami- lies will try to raise an obedient child having strong ties to family, even when they settle to a new location. How- ever, this kind of parenting does not guarantee a strong attachment to family. As Kağıtçıbaşı (1970) stated, act- ing scrutinizing behaviors toward children cannot be accounted as loving or being supportive in Turkish family structure and these two notions are totally separate from each other. Especially for girls in Turkey, this secura- tive behaviors show themselves as conservative and in Turkish culture, this effect is more noticeable compared to boys. Data obtained in this study also strongly support these notions. Social support coming from friends has shown significant effects on the relationships between autonomous and impersonal orientations and depressive symptoms, OCD symptomology, and general psychological symptoms. However, the impact of social support was not similar to control oriented individuals. Those individuals experi- enced increased general psychological symptoms and depressive symptoms, but not OCD symptomology. Control orientation was not significant for both gender. An important feature of the GCOS is that each subscale does not sub-categorize or separate individuals. This lies in the nature of general causality orientations being more dimensional than categorical. At each subscale, rather than a separation, each individual should be con- sidered to take a place on an axis; to illustrate, control oriented individuals should be considered and analyzed on an autonomous and impersonal axis (Deponte, 2004). The investigation of individuals with an internal or ex- ternal locus of control (with the partial mediator of friends’ social support) disclose significant relationships be- tween internal locus of control, depressive symptoms, and psychological symptoms, but not with OCD sympto- mology. Moreover, gender-based analysis illustrated significant relationships between internal locus of control and psychological symptoms solely in males. This kind of difference is thought to be the result of variations in sub-dimensions of locus of control. In the literature, there are discussions about variations in sub-dimensions of control individuals, and they review the expansion of female’s social networks and how they might have an im- pact on these variations (Sherman et al., 1997). However, since we investigated internal and external locus of control in two dimensions only, this kind of analysis could not be inferred from our study. It is well known that individuals at university level initiate distant relations with family, at which point perceived support shifts from family to friends (Lee, 2011). Our study supports this notion but it does not explain the gender difference. Our study illustrates that suitable independent variables for depressive symptoms are impersonal orientation, autonomous orientation, and external locus of control. While increasing impersonal orientation and locus of control causes elevated depressive symptoms levels; increased autonomous orientation related to declining de- pressive symptoms levels. Moreover, when social support is accounted for as a partial mediator, the perceived social supports showed distinct results. Perceived support coming from friends was shown to be much more effective in reducing depressive symptoms levels, rather than family. Previous research on the topic shows that students who are living far away from family require more psychological support (İmamoğlu & Yasak-Gültekin, 1993), and decreased family support is correlated with increased psychological symptoms (Armsden & Greenberg, 1987; Bayram, 1999; Wentzel, 1998). There are also some studies which point out the importance Dağ & Şen 545 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ of family toward the progression of depressive symptoms (Chou, 1999; Juang & Silbereisen, 1999) while some other studies relate importance of elevated friends support on declined depressive symptoms (Wentzel, 1998). Moreover, Chou's (1999) research showed that friend’s support has independent effects on personal well-being and an increased number of friends are associated with positive emotions. Since all of these findings are cov- ered in our study, new analyses were established, and those analyses revealed that the majority of students were senior university students (78%). Accordingly, our study showed that junior and senior university students give more importance to friends than freshman (sophomore) university students. Previous studies of depressive symptoms that describe social support as an important factor for treatment, showed that lack of perceived so- cial support is recognized as an initiator and maintenance factor for depressive symptoms, and found that de- pressive symptoms increase without social support (Paykel, 1994). Moreover, perceived social support was found to be critical for depressive symptoms treatment in the early phases (Brugha et al., 1997). In our study, most of the participants were far away from their hometown and living with friends in other cities. Especially, while assessing the risk factors and managing protective measures for psychological well-being of freshman and sophomore students, different effects of perceived social support should not be neglected and must be im- plemented as critical factors. Suitable independent variables for OCD symptomology were impersonal orientations, control orientation, and external locus of control. An increase in each of these variables was associated with elevated OCD symptomol- ogy levels. While social support has partial mediator effects, symptoms for both impersonal orientation and ex- ternal locus of control were decreased. However, this effect has not been observed for OCD symptomology when control orientation has a mediating role, and neither perceived support of family nor friends has an effect on OCD symptomology levels. Control orientation was studied as an independent variable while conducting pathway analysis combined with literature. However, another study (Neighbors et al., 2006) in which these vari- ables were in a different order and different theories were tested, showed that control orientation has significant contributions as a partial mediator. We advise to future studies to include control orientation as a partial media- tor as well. When perceived social support is considered as a partial mediator, the source of support is proven to be important. While perceived social support is a partial mediator, and received from family, individuals hav- ing an external locus of control experienced reduced OCD symptomology Although this situation might have arisen because of the probable co-existence of depressive symptoms and OCD symptomology (Andrews et al., 2002; Pigott et al., 1994), it might have happened due to the impact of depressive symptoms on cognitive func- tions, leading to vulnerability for OCD symptomology, or statistically masking symptoms of depressive symp- toms toward OCD symptomology (Rachman, 1998). According to the findings of our study, the most suitable independent variables for general psychological symp- toms are impersonal orientations and external locus of control. In most cases where both perceived support from family and friends are partial mediators, a significant decrease in psychological symptoms was observed. Only in the situation where social support from family is a partial mediator, reduced psychological symptoms were detected in individuals having an external locus of control. In our study, the most applicable dependent variables are depressive symptoms, general psychological symptoms level, and OCD symptomology, respec- tively. SDT, Locus of Control and Psychopathological Symptoms 546 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ Conclusion There were some limitations in our study, namely the fact that all the data acquired in this study was based on self-reports. Although covering many students from different cities expands the breadth and replicability of the study, comprising only university students limits both age and educational levels, and results in a limited sample in Turkey. Therefore, the results obtained in terms of age and culture-dependent features can be mentioned. However, choosing university students who are in transition from puberty to adulthood is representative of an important part of society. In addition, these findings can better help us inform protective psychological meas- ures for these individuals. However, involving other age groups in future studies will expand the knowledge about age group differences and their interpretations. Furthermore, since our study does not comprise clinical samples, the findings present limitations about their clinical use. On the other hand, our study focused more on testing models and differentiating theoretical variances across different cultural backgrounds, rather than clini- cal findings. It will be advantageous for future studies to include clinical samples. Non-equal distribution of our sampling in regard to gender presents difficulties when analyzing gender specific differences. Owing to this factor, our study does not provide a comparative analysis between gender, and anal- yses for each gender were performed separately. Although the sample for male is tried to be expanded, be- cause of in-equal number of individuals gender in departments and voluntary basis, this effort could not be completely accomplished. Including more male individuals will broaden the study and enable comparative stud- ies about gender. As expected from the literature, the established model was confirmed to be productive for undergraduate stu- dents in Turkey. Sub-dimensions of causality orientations and locus of control were analyzed in detail and dif- ferent results from western culture were obtained. This difference was discussed and thought to be based on for undergraduate students in Turkey. Especially, gender and attitudes toward raising children are considered to be the main reasons for this difference. Perceived social support was found to be suited for the role of partial mediator, and social support from friends was found to have more positive roles than social support from family. As age, environment, and the distance from family were account for in this study, we were able to make critical deductions. Since other similar studies are focused on individualistic cultures, owing to mosaic nature of Tur- key, our findings provided prosperity and variance to the literature, and reveal the variances of similar studies in different cultures. Finally, general causality orientations, locus of control, perceived social support acting as var- iables showing different psychological symptoms can be used in different models and can assume different par- tial mediating roles. Funding This study is a part of project founded by The Scientific And Technological Research Council Of Turkey (TUBITAK) (Project no.114K086). Competing Interests The authors have declared that no competing interests exist. Acknowledgments The authors have no support to report. Dağ & Şen 547 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://www.psychopen.eu/ R efe re nc es Akbağ, M., Sayıner, B., & Sözen, D. (2005). Üniversite öğrencilerinde stres düzeyi, denetim odağı ve depresyon arasındaki ilişki üzerine bir inceleme [An investigation on the relationship between stress levels, supervision health and depression levels in university students] M.Ü. Atatürk Eğitim Fakültesi Eğitim Bilimleri Dergisi, 21, 59-74. Andrews, G., Slade, T., & Issakidis, C. (2002). Deconstructing current comorbidity: Data from the Australian national survey of mental health and well-being. The British Journal of Psychiatry, 181, 306-314. doi:10.1192/bjp.181.4.306 Arkar, H., & Şafak, C. (2004). Klinik bir örneklemde Beck Depresyon Envanteri’nin boyutlarının araştırılması [Investigation of the dimensions of the Beck Depression Inventory in a clinical sample]. Türk Psikoloji Dergisi, 19, 117-123. Armsden, G. C., & Greenberg, M. T. (1987). The inventory of parent and peer attachment: Individual differences and their relationship to psychological well-being in adolescence. Journal of Youth and Adolescence, 16, 427-454. doi:10.1007/BF02202939 Baron, R. M., & Kenny, D. A. (1986). The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations. Journal of Personality and Social Psychology, 51(6), 1173-1182. doi:10.1037/0022-3514.51.6.1173 Baydoğan, M., & Dağ, İ. (2008). Hemodiyaliz hastalarındaki depresiflik düzeyinin yordanmasında kontrol odağı, öğrenilmiş güçlülük ve sosyotropi-otonomi [Prediction of depressiveness by locus of control, learned resourcefulness and sociotrophy-autonomy in hemodialysis patients]. Türk Psikiyatri Dergisi, 19(1), 19-28. Bayram, D. (1999). Bir grup gençte ruhsal belirti ile sosyal destek ilişkisi (Yayınlanmamış Doktora Tezi) [Relation of psychological symptom and social support to a group of young people (Unpublished doctoral thesis). Dokuz Eylül Üniversitesi, İzmir, Turkey. Beck, A. T., Ward, C. H., Mendelson, M., Mock, J., & Erbaugh, J. (1961). An inventory for measuring depression. Archives of General Psychiatry, 4, 561-571. doi:10.1001/archpsyc.1961.01710120031004 Brockelman, K. F. (2009). The interrelationship of self-determination, mental illness and grades among university student. Journal of College Student Development, 50(3), 271-286. doi:10.1353/csd.0.0068 Brugha, T. S., Bebbington, P. E., Stretch, D. D., MacCarthy, B., & Wykes, T. (1997). Predicting the short-term outcome of first episodes and recurrences of clinical depression: A prospective study of life events, difficulties, and social support networks. The Journal of Clinical Psychiatry, 58(7), 298-306. doi:10.4088/JCP.v58n0703 Caplan, G. (1973). Support systems and community mental health. New York, NY, USA: Behavioral Publications. Cerit, T. (2007). Ergenlerin aile ilişkilerini algılamalarının bazı değişkenlere göre incelenmesi [Examination of perception of family relations by some variables of adolescents] (Unpublished master's thesis). Gazi Üniversitesi Eğitim Bilimleri Enstitüsü, Ankara, Turkey. Cheng, C., Cheung, S., Chio, J. H., & Cahn, M. S. (2013). Cultural meaning of perceived control: A meta-analysis of locus of control and psychological symptoms across 18 cultural regions. Psychological Bulletin, 139, 152-188. doi:10.1037/a0028596 SDT, Locus of Control and Psychopathological Symptoms 548 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://doi.org/10.1192/bjp.181.4.306 https://doi.org/10.1007/BF02202939 https://doi.org/10.1037/0022-3514.51.6.1173 https://doi.org/10.1001/archpsyc.1961.01710120031004 https://doi.org/10.1353/csd.0.0068 https://doi.org/10.4088/JCP.v58n0703 https://doi.org/10.1037/a0028596 https://www.psychopen.eu/ Chou, K.-L. (1999). Social support and subjective well-being among Hong Kong Chinese young adults. The Journal of Genetic Psychology, 160(3), 319-331. doi:10.1080/00221329909595402 Dağ, İ. (1992). Kontrol odağı, öğrenilmiş güçlülük ve psikopatoloji ilişkileri [Locus of control, learned resourcefulness and psychopathology relationships]. Psikoloji Dergisi, 7(27), 1-9. Dağ, İ. (2002). Kontrol odağı ölçeği (KOÖ): Ölçek geliştirme, güvenirlik ve geçerlik çalışması [Locus of control scale (LOCS): Scale development, validity and reliability study]. Türk Psikoloji Dergisi, 17, 77-90. Daniels, K., & Guppy, A. (1994). Occupational stress, social support, job control, and psychological well-being. Human Relations, 47(12), 1523-1544. doi:10.1177/001872679404701205 deCharms, R. (1968). Personal causation: The internal effective determinants of behavior. New York, NY, USA: Academic Press. Deci, E. L., & Ryan, R. M. (1985). The general causality orientations scale: Self-determination in personality. Journal of Research in Personality, 19, 109-134. doi:10.1016/0092-6566(85)90023-6 Deci, E. L., & Ryan, R. M. (1987). The support of autonomy and the control of behavior. Journal of Personality and Social Psychology, 53(6), 1024-1037. doi:10.1037/0022-3514.53.6.1024 Deci, E. L., & Ryan, R. M. (2000). The “what” and “why” of goal pursuits: Human needs and the self-determination of behavior. Psychological Inquiry, 11, 227-268. doi:10.1207/S15327965PLI1104_01 Deci, E. L., & Ryan, R. M. (2008). Self-determination Theory: A macrotheory of human motivation, development, and health. Canadian Psychology, 49(3), 182-185. doi:10.1037/a0012801 Deponte, A. (2004). Linking motivation to personality: Causality orientations, motives, and self-descriptions. European Journal of Personality, 18, 31-44. doi:10.1002/per.503 Derogatis, L. R. (1992). The Brief Symptom Inventory-BSI administration, scoring and procedures manual-II (2nd ed.). Towson, MD, USA: Clinical Psychometric Research. Erol, A., Toprak, G., Yazıcı, F., & Erol, S. (2000). Üniversite öğrencilerinde yeme bozukluğu belirtilerini yordayıcısı olarak kontrol odağı ve benlik saygısının karşılaştırılması [Comparison of locus of control and self-esteem as predictors of severity of anorexic symptoms]. Klinik Psikiyatri, 3, 147-152. Erol, N., & Savaşır, I. (1988). Maudsley obsesif kompulsif soru listesinin Türkçe uyarlaması [Turkish version of the Maudsley Obsessive Compulsive Question List]. 26th National Congress of Psychiatry and Neurological Sciences, Ankara, Turkey. Genez Muluk, E. (2004). Alt ve Üst Sosyoekonomik Düzeydeki Ailelerin Aile Yapıları ve Anne Çocuk İlişkisinin İncelenmesi [Analysing of family structures and mother-child relationships low and high socio-economic levels of families] (Unpublished master's thesis). Gazi Üniversitesi Eğitim Bilimleri Enstitüsü, Çocuk Gelişimi ve Ev Yönetimi Anabilim Dalı. Gülüm, İ. V., & Dağ, İ. (2014). Yetişkin bağlanma örüntüleri ile psikopatoloji belirtileri arasındaki ilişkide bilişsel özelliklerin aracı rolü: kontrol odağı ve tekrarlayıcı düşünme [The mediator role of the cognitive features in the relationship between adult attachment patterns and psychopathology symptoms: The locus of control and repetitive thinking]. Türk Psikiyatri Dergisi, 25(4), 244-252. Dağ & Şen 549 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://doi.org/10.1080/00221329909595402 https://doi.org/10.1177/001872679404701205 https://doi.org/10.1037/0022-3514.53.6.1024 https://doi.org/10.1207/S15327965PLI1104_01 https://doi.org/10.1037/a0012801 https://doi.org/10.1002/per.503 https://www.psychopen.eu/ Hagger, M. S., & Chatzisarantis, N. L. D. (2011). Causality orientations moderate the undermining effect of rewards on intrinsic motivation. Journal of Experimental Social Psychology, 47, 485-489. doi:10.1016/j.jesp.2010.10.010 Hall, R. J., Snell, A. F., & Foust, M. S. (1999). Item parceling strategies in SEM: Investigating the subtle effects of unmodeled secondary constructs. Organizational Research Methods, 2(3), 233-256. doi:10.1177/109442819923002 Heider, F. (1958). The psychology of interpersonal relations, New York, NY, USA: Wiley. Hisli, N. (1988). Beck Depresyon Envanteri’nin geçerliği üzerine bir çalışma [A study on the validity of Beck Depression Inventory]. Psikoloji Dergisi, 6, 118-126. Hisli, N. (1989). Beck Depresyon Envanteri’nin üniversite öğrencileri için geçerliği, güvenirliği [The validity and reliability of the Beck Depression Inventory for university students]. Psikoloji Dergisi, 7, 3-13. Hooper, D., Coughlan, J., & Mullen, M. (2008). Structural equation modelling: Guidelines for determining model fit. Electronic Journal of Business Research Methods, 6, 53-60. Hortaçsu, N., Oral, A., & Yasak-Gültekin, Y. (1991). Factors affecting relationships of Turkish adolescents with parents and same-sex friend. The Journal of Social Psychology, 131(3), 413-426. doi:10.1080/00224545.1991.9713867 İmamoğlu, E., & Yasak-Gültekin, Y. (1993). Önerilen dengelenmiş toplumsal birey modeli ışığında üniversite gençliğinin sorunları: 1982-92 döneminde yayınlanan araştırmalara ilişkin bir değerlendirme, yorum ve öneriler [Problems of university youth in the light of the proposed balanced social individual model: An evaluation, comments and suggestions on the research published in 1982-92 period]. Türk Psikoloji Dergisi, 8(30), 27-41. James, W. H. (1957). Internal vs. external control of reinforcement as a basic variable in learning theory (Unpublished doctoral dissertation). Ohio State University, Columbus, OH, USA. Juang, L. P., & Silbereisen, R. K. (1999). Supportive parenting and adolescent adjustment across time in former East and West Germany. Journal of Adolescence, 22(6), 719-736. doi:10.1006/jado.1999.0267 Kağıtçıbaşı, C. (1970). Social norms and authoritarianism: A Turkish-American comparison. Journal of Personality and Social Psychology, 16(3), 444-451. doi:10.1037/h0030053 Kağıtçıbaşı, Ç. (1984). Socialization in traditional society: A challenge to psychology. International Journal of Psychology, 19(1-4), 145-157. doi:10.1080/00207598408247522 Kağıtçıbaşı, C. (2005). Autonomy and relatedness in cultural context: Implications for self and family. Journal of Cross- Cultural Psychology, 36, 403-422. doi:10.1177/0022022105275959 Kağıtçıbaşı, Ç., Sunar, D., & Bekman, S. (2001). Long-term early intervention: Turkish low-income mothers and children. Applied Developmental Psychology, 22, 333-361. doi:10.1016/S0193-3973(01)00071-5 Koestner, R., & Zuckerman, M. (1994). Causality orientation, failure, and achievement. Journal of Personality, 62(3), 321-346. doi:10.1111/j.1467-6494.1994.tb00300.x Lee, E. J. (2011). The attachment system throughout the life course: Review and criticisms of attachment theory. Retrieved from http://www.personalityresearch.org/papers/lee.html Lewin, K. (1951). Field theory in social science: Selected theoretical papers. New York, NY, USA: Harper & Row. SDT, Locus of Control and Psychopathological Symptoms 550 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://doi.org/10.1016/j.jesp.2010.10.010 https://doi.org/10.1177/109442819923002 https://doi.org/10.1080/00224545.1991.9713867 https://doi.org/10.1006/jado.1999.0267 https://doi.org/10.1037/h0030053 https://doi.org/10.1080/00207598408247522 https://doi.org/10.1177/0022022105275959 https://doi.org/10.1111/j.1467-6494.1994.tb00300.x http://www.personalityresearch.org/papers/lee.html https://www.psychopen.eu/ McAdams, D. P., & Olson, B. D. (2010). Personality development: Continuity and change over the life course. Annual Review of Psychology, 61, 517-542. doi:10.1146/annurev.psych.093008.100507 McGregor, I., McAdams, D. P., & Little, B. (2006). Personal projects, life-stories and happiness: On being true to traits. Journal of Research in Personality, 40, 551-572. doi:10.1016/j.jrp.2005.05.002 Meijer, S. A., Sinnema, G., Bijstra, J. O., Mellenbergh, G. J., & Wolters, W. H. G. (2002). Coping styles and locus of control as predictors for psychological adjustment of adolescent with a chronic illness. Social Science & Medicine, 54, 1453-1461. doi:10.1016/S0277-9536(01)00127-7 Neighbors, C., Lewis, M. A., Bergstrom, R. L., & Larimer, M. E. (2006). Being controlled by normative influences: Self- determination as a moderator of a normative feedback alcohol intervention. Health Psychology, 25(5), 571-579. doi:10.1037/0278-6133.25.5.571 Olesen, M. H. (2011). General causality orientations are distinct from but related to dispositional traits. Personality and Individual Differences, 51, 460-465. doi:10.1016/j.paid.2011.04.015 Olesen, M. H., Thomsen, D. H., Schnieber, A., & Tønnesvang, J. (2010). Distinguishing general causality orientations from personality traits. Personality and Individual Differences, 48, 538-543. doi:10.1016/j.paid.2009.11.032 Özgüven, İ. E. (2001). Ailede İletişim ve Yaşam [Communication and life in the family]. Ankara, Turkey: PDREM Yayınları. Paykel, E. S. (1994). Life events social support and depression. Archives of General Psychiatry, 51(4), 325-332. doi:10.1001/archpsyc.1994.03950040069009 Pelletier, L. G., Dion, S., Tuson, K. M., & Green-Demers, I. (1999). Why do people fail to adopt environmental behaviors? Towards a taxonomy of environmental motivation. Journal of Applied Social Psychology, 29, 2481-2504. doi:10.1111/j.1559-1816.1999.tb00122.x Phares, E. J. (1957). Expectancy changes in skill and chance situations. Abnormal and Social Psychology, 54, 339-342. doi:10.1037/h0045684 Pigott, T. A., L’Heureux, F., Dubbert, B., & Murphy, D. L. (1994). Obsessive compulsive disorder: Comorbid conditions. The Journal of Clinical Psychiatry, 55(Suppl), 15-27, discussion 28–32. Procidano, M. E., & Heller, K. (1983). Measure of perceived social support from friends and from family: Three validation Studies. American Journal of Community Psychology, 11, 1-24. doi:10.1007/BF00898416 Rachman, S. (1998). A cognitive theory of obsessions. In Behavior and cognitive therapy today: Selected proceedings of the XXVII Congress of the European Association for Behavioral and Cognitive Therapies, Venice 1997 (pp. 209-222). Amsterdam, The Netherlands: Elsevier. Rotter, J. B. (1966). Generalized expectancies for internal vs. external control of reinforcement. Psychological Monographs, 80, 1-28. doi:10.1037/h0092976 Rotter, J. B. (1975). Some problems and misconceptions related to the construct of internal versus external control of reinforcement. Journal of Consulting and Clinical Psychology, 43(1), 56-67. doi:10.1037/h0076301 Rotter, J. B. (1990). Internal vs. external control of reinforcement: A case history of variable. The American Psychologist, 45, 489-493. doi:10.1037/0003-066X.45.4.489 Dağ & Şen 551 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://doi.org/10.1146/annurev.psych.093008.100507 https://doi.org/10.1016/j.jrp.2005.05.002 https://doi.org/10.1037/0278-6133.25.5.571 https://doi.org/10.1016/j.paid.2011.04.015 https://doi.org/10.1016/j.paid.2009.11.032 https://doi.org/10.1001/archpsyc.1994.03950040069009 https://doi.org/10.1111/j.1559-1816.1999.tb00122.x https://doi.org/10.1037/h0045684 https://doi.org/10.1007/BF00898416 https://doi.org/10.1037/h0092976 https://doi.org/10.1037/h0076301 https://doi.org/10.1037/0003-066X.45.4.489 https://www.psychopen.eu/ Ryan, R. M., Deci, E. L., & Grolnick, W. S. (1995). Autonomy, relatedness, and the self: Their relation to development and psychopathology. In D. Cicchetti & D. J. Cohen (Eds.), Developmental psychopathology, 1, 618–655. New York, NY, USA: Wiley. Ryff, C. D. (1989). Happiness is everything, or is it? Explorations on the meaning of psychological well-being. Journal of Personality and Social Psychology, 57(6), 1069-1081. doi:10.1037/0022-3514.57.6.1069 Sadabadi, M. H., Babapour, J., & Poursharifi, H. (2011). The role of general causality orientations on self-care behaviors in patients with type 2 diabetes. In D. E. Öngen, C. Hürsen, M. Halat, & H. Boz (Eds.), 2nd world conference on psychology, counselling and guidance - Procedia - Social and Behavioral Sciences, 30, 480-484. https://doi.org/ doi:10.1016/j.sbspro.2011.10.094 Şahin, N. H., & Durak, A. (1994). Kısa Semptom Envanteri (Brief Symtom Inventory-BSI): Türk gençleri için uyarlaması [Brief symptom inventory: Adaptation for Turkish youth]. Türk Psikoloji Dergisi, 9(31), 44-56. Sanavio, E., & Vidotto, G. (1985). The components of the Maudsley Obsessional Compulsive Questionnaire. Behavior Research and Therapy, 23, 659-662. doi:10.1016/0005-7967(85)90061-0 Sayın, Ö. (1987). Aile İçi İlişkilerin Toplum ve Birey Boyutunda Çözümlenmesi [Analysis of family relations in society and individual dimension]. Aile Yazıları, 4, 546. Şen, G., & Dağ, İ. (2016). Genel Nedensellik Yönelimleri Ölçeğinin Türkçeye uyarlanması, geçerlilik ve güvenilirliğinin üniversite öğrencilerinde sınanması [The Turkish adaptation, validity and reliability study of General Causality Orientations Scale in a university sample]. Anadolu Psikiyatri Dergisi, 17, 100-107. doi:10.5455/apd.204169 Sherman, A. C., Higgs, G. E., & Williams, R. L. (1997). Gender differences in the locus of control construct. Psychology & Health, 12(2), 239-248. doi:10.1080/08870449708407402 Skinner, E. A. (1996). A guide to constructs of control. Journal of Personality and Social Psychology, 71(3), 549-570. doi:10.1037/0022-3514.71.3.549 Soenens, B., Berzonsky, M. D., Vansteenkiste, M., Beyers, W., & Goossens, L. (2005). Identity styles and causality orientations: In search of the motivational underpinnings of the identity exploration process. European Journal of Personality, 19, 427-442. doi:10.1002/per.551 Ulusavaş, M. (1990). Kalkınmada Çocuk ve Eğitimin Önceliği [Priority of child education in development]. Eğitim Bilimleri Dergisi, 2(2), 221-228. Vansteenkiste, M., & Sheldon, M. K. (2006). There is nothing more practical than a good theory: Integrating motivational interviewing and self-determination theory. British Journal of Clinical Psychology, 45, 63-82. doi:10.1348/014466505X34192 Wentzel, K. (1998). Social relationship and motivation in middle school: The role of parents, teacher, and peers. Journal of Educational Psychology, 90(2), 202-209. doi:10.1037/0022-0663.90.2.202 Wight, R. G., Botticello, A. L., & Aneshensel, C. S. J. (2006) Socioeconomic context, social support, and adolescent mental health: A multilevel investigation. Youth Adolescence, 35, Article 109. doi:10.1007/s10964-005-9009-2 SDT, Locus of Control and Psychopathological Symptoms 552 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 https://doi.org/10.1037/0022-3514.57.6.1069 https://doi.org/10.1016/j.sbspro.2011.10.094 https://doi.org/10.5455/apd.204169 https://doi.org/10.1080/08870449708407402 https://doi.org/10.1037/0022-3514.71.3.549 https://doi.org/10.1002/per.551 https://doi.org/10.1348/014466505X34192 https://doi.org/10.1037/0022-0663.90.2.202 https://doi.org/10.1007/s10964-005-9009-2 https://www.psychopen.eu/ Williams, G. C., Grow, V. M., Freedman, Z. R., Ryan, R. M., & Deci, E. L. (1996). Motivational predictors of weight loss and weight-loss maintenance. Journal of Personality and Social Psychology, 70(1), 115-126. doi:10.1037/0022-3514.70.1.115 Yıldırım, İ. (1997). Algılanan Sosyal Destek Ölçeğinin geliştirilmesi güvenirliği ve geçerliği [Development of the Perceived Social Support Scale reliability and validity]. Hacettepe Üniversitesi Eğitim Fakültesi Dergisi, 13, 81-87. Yıldırım, İ. (2004a). Depresyonun yordayıcısı olarak sınav kaygısı, gündelik sıkıntılar ve sosyal destek [Anxiety as a predictor of depression, everyday stresses and social support]. Hacettepe Üniversitesi Eğitim Fakültesi Dergisi, 27, 241-250. Yıldırım, İ. (2004b). Algılanan Sosyal Destek Ölçeğinin revizyonu [Revision of the perceived social support scale]. Eğitim Araştırmaları. Eurasian Journal of Educational Research, 17, 221-236. Yörükoğlu, A. (1992). Çocuk ve Ruh Sağlığı [Child and mental health] (17. Baskı) İstanbul, Turkey: Özgür Yayınları. A bout the A uthor s İhsan Dağ is a faculty member of Hacettepe University Department of Psychology, Clinical Psychology Program since 1984; and former chairperson of the department; and a former president of Turkish Psychological Association. Gamze Sen is a research assistant at Hacettepe University Department of Psychology, Clinical Psychology Program since 2012. She received her undergraduate degree from Hacettepe University in 2011; and still continues her education as a doctoral candidate. She is a member of Turkish Psychological Association. Dağ & Şen 553 Europe's Journal of Psychology 2018, Vol. 14(3), 531–553 doi:10.5964/ejop.v14i3.1563 PsychOpen GOLD is a publishing service by Leibniz Institute for Psychology Information (ZPID), Trier, Germany. www.leibniz-psychology.org https://doi.org/10.1037/0022-3514.70.1.115 https://www.leibniz-psychology.org/ https://www.psychopen.eu/ SDT, Locus of Control and Psychopathological Symptoms (Introduction) Methods Participants Measures and Materials Procedure Results Discussion Conclusion (Additional Information) Funding Competing Interests Acknowledgments References About the Authors