205 Studies in Second Language Learning and Teaching Department of English Studies, Faculty of Pedagogy and Fine Arts, Adam Mickiewicz University, Kalisz SSLLT 12 (2). 2022. 205-232 http://dx.doi.org/10.14746/ssllt.2022.12.2.3 http://pressto.amu.edu.pl/index.php/ssllt Taking stock: A meta-analysis of the effects of foreign language enjoyment Elouise Botes University of Vienna, Austria https://orcid.org/0000-0003-4952-8386 elouise.botes@univie.ac.at Jean-Marc Dewaele Birkbeck College, University of London, UK https://orcid.org/0000-0001-8480-0977 j.dewaele@bbk.ac.uk Samuel Greiff University of Luxembourg, Luxembourg https://orcid.org/0000-0003-2900-3734 samuel.greiff@uni.lu Abstract Studies examining the positive emotion of foreign language enjoyment (FLE) have recently increased exponentially, as researchers are applying the tenets of positive psychology in applied linguistics. It is therefore an appropriate time to take stock of the current literature and conduct a preliminary meta-analy- sis. The relationships between FLE and four variables, namely, foreign lan- guage anxiety (FLA), willingness to communicate (WTC), academic achieve- ment, and self-perceived achievement were examined. A total of k = 96 effect sizes were analyzed with an overall sample size of N = 28,166 in random-ef- fects models with correlation coefficients. There was a moderate negative cor- relation between FLE and FLA. In turn, moderate positive correlations were found between FLE and WTC, FLE and academic achievement, and FLE and self-perceived achievement. These positive associations confirm the value of Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 206 FLE in FL learning and further affirm the need for researchers to examine pos- itive psychology constructs in the foreign language classroom. Keywords: foreign language enjoyment; meta-analysis; foreign language anxiety; willingness to communicate; academic achievement; self-perceived achievement 1. Introduction Foreign language enjoyment (FLE) has been the cornerstone of the recent positive psychology in foreign language (FL) learning movement (Dewaele & MacIntyre, 2014; MacIntyre et al., 2019; Mercer & MacIntyre, 2014). Introduced by Dewaele and MacIntyre (2014), FLE can be defined as a broad positive emotion experi- enced by FL learners when their psychological needs are met in the FL classroom (Botes et al., 2020a). FLE represents the first foray into quantifying positive emo- tions in FL research (Dewaele & MacIntyre, 2014) and has been an increasingly popular variable to examine since it was introduced in 2014. Increased research scrutiny has established the nomological network of FLE, which demonstrates the positive interrelations of FLE. Greater FLE in the FL class has been associated with lower foreign language anxiety (FLA; Dewaele & MacIntyre, 2016), greater willing- ness to communicate (WTC) in the target language (TL; Khajavy et al., 2018), higher academic achievement in the FL classroom (Jin & Zhang, 2021), and higher self-perceived competence in the TL (Zhang et al., 2020). The research attention on FLE has been such that it has rendered a meta-analytical study of FLE and these four individual difference variables (FLA, WTC, academic achievement, and self- perceived achievement) a viable research endeavor. With this increased research momentum, now would be a prudent time to take stock and examine the research trends that can be identified for the first variable of the movement, namely, FLE. With this study, we thus endeavored to conduct a meta-analysis of FLE and its associations with FLA, WTC, academic achievement, and self-perceived achievement. These four individual difference variables were chosen as they are all established constructs in the FL learning literature and have all been examined in conjunction with FLE in numerous stud- ies, thus rendering a meta-analysis of the variables practically feasible. Two other issues helped us decide which variables to focus on in our study. First, other variables have also been examined alongside FLE, such as grit (Wei et al., 2019), emotional intelligence (Resnik & Dewaele, 2020), and motivation (Dewaele & Proietti Ergün, 2020). However, these other variables have not been explored to the extent that the four variables included in this study. Second, a meta-analysis can be conducted with as few as two effect sizes (Valentine et al., Taking stock: A meta-analysis of the effects of foreign language enjoyment 207 2010), and some other variables met this criterion (e.g., we found five effect sizes for grit and three effect sizes for emotional intelligence), but we decided to focus on the four variables that went beyond this minimum criterion and thus presented the greatest opportunity for adding to the research dialogue. The re- sults of this meta-analysis will provide a practical demonstration of the power of positive emotions in the FL classroom and further strengthen the positive psychology movement in FL learning. 2. Literature review 2.1. Positive psychology and FLE The positive associations between FLE and other FL individual difference varia- bles can be seen as a practical embodiment of the tenets of positive psychology in an applied setting. Positive psychology has been defined as the “scientific study of what goes right in life” (Peterson, 2006, p. 4), and, as such, positive psychology in the context of FL learning can be redefined as what goes right in the language classroom. FLE embodies key aspects of two seminal theories in positive psychology research. Firstly, Seligman (2018) identified the building blocks of well-being in his PERMA model (positive emotion, engagement, relationships, meaning, and achievement), which posits that each element contributes – both individually and in conjunction with the other variables – to overall happiness and flourish- ing. FLE can be seen as an applied embodiment of the positive emotion element in Seligman’s (2018) model. Secondly, Fredrickson (2001, 2013) touted the broadening-and-building capacity of positive emotions, where positive emo- tions constitute an individual’s psychological resources, which, in turn, broaden the person’s scope of awareness and perception. In the applied setting of the FL classroom, FLE therefore constitutes the psychological resources of the FL learner to endure the unique challenges that FL learning poses and allows stu- dents to broaden their learning in the FL classroom by taking in additional infor- mation (MacIntyre, 2016). Both the theories proposed by Seligman (2018) and Frederickson (2001, 2013) would therefore imply a positive outcome should the tenets of PERMA and broaden-and-build be strengthened. In terms of the applied setting of FL learning, this would imply that the positive emotion of FLE should be associated with positive outcomes in the FL classroom. The nomological network of FLE has thus far supported this notion as FLE is associated with positive outcomes such as academic achievement and perceived proficiency in the TL. Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 208 2.2. The nomological network of FLE FLE has been linked to demographic variables, personal characteristic variables, and applied linguistic variables. As FLE can be a considered a relatively “new” var- iable, its nomological network is still expanding, yet preliminary findings are promising for researchers in the field of positive psychology in applied linguistics. The demographic variables of age, gender, and multilingualism have all been associated with FLE. Older FL learners have been found to exhibit higher levels of FLE than their younger counterparts (Dewaele et al., 2018; Dewaele & MacIntyre, 2014), with university students displaying greater FLE than second- ary school students (Dewaele & MacIntyre, 2014). There is only a limited num- ber of studies that have examined FLE and age comparisons, and thus a defini- tive conclusion cannot yet be drawn. The verdict regarding gender and FLE is also unclear. Several studies have found that female FL learners indicated higher levels of FLE than their male counterparts (Dewaele & MacIntyre, 2014; Dewaele et al., 2016), with others reporting no significant differences regarding gender and FLE (Alezeni, 2020; Mierzwa, 2018). Contrasting evidence has also been found in terms of the level of multilingualism and FLE, with some studies reporting a higher degree of multilingualism linked to greater FLE (Dewaele & MacIntyre, 2014; Dewaele, Özdemir et al., 2022), and others reporting no sta- tistically significant association (Dewaele et al., 2018). As FLE has only been in the applied linguistics research sphere for a mere six years, it is not surprising that conclusions about demographic differences cannot yet be made. Consider- able future research is therefore needed. Other antecedents that have been linked to FLE are personality traits, emo- tional intelligence, and grit. The personality traits of social initiative (β = -0.09, p < .001) and cultural empathy (β = 0.20, p < .001) have both been found to predict FLE (Dewaele & MacIntyre, 2019). Large positive correlations have also been found be- tween FLE and curiosity in FL learning (Mahmoodzadeh & Khajavy, 2018). In addi- tion, need for cognition has been found to predict FLE (β = 0.31, p < .001; Rezazadeh & Zarrinabadi, 2020), and emotional intelligence has been found to be moderately positively correlated with FLE (Li, 2020; Li & Xu, 2019; Resnik & Dewaele, 2020). Lastly, grit in FL learners has also shown moderate to large positive correlations with FLE (Lee, 2020; Wei et al., 2019). The findings from these studies further confirm the underlying positive psychology theories on which FLE was built in that FLE is clearly associated with positive traits in the nomological network. However, as only a few studies have examined these positive characteristics and FLE (k ≤ 3), it was not viable to include personality, grit, or emotional intelligence in the meta-analysis. Beyond its antecedents, FLE is most often examined alongside FLA. FLE was first introduced into the applied linguistics lexicon by Dewaele and MacIntyre (2014) Taking stock: A meta-analysis of the effects of foreign language enjoyment 209 in a study in which they compared and contrasted the negative emotion of FLA with the newly introduced FLE. FLA is an established and popular variable in ap- plied linguistics research with a well-known and often researched nomological network (see Horwitz, 2010; MacIntyre, 2017). As FLE debuted as the positive emotion counterpart to FLA, it comes as no surprise that the majority of re- search on FLE has thus far examined the association between FLE and FLA. A prevailing trend of moderate negative correlations between FLE and FLA seems to have emerged (see Hung, 2020; Resnik & Dewaele, 2020; Uzun, 2017), but some deviations still occur. Studies have found small positive correlations (Dewaele, Özdemir et al., 2022), small negative correlations (Dewaele & Alfaw- zan, 2018), and nonsignificant results (Dewaele & Dewaele, 2017). As there is an abundance of research on FLE and FLA, we decided to investigate the rela- tionship between the two variables in this meta-analytical study. FLA is often researched in conjunction with the FL classroom variables of WTC, academic achievement, and self-perceived achievement, and as such, these variables can be considered to function within the same nomological net- work. With the increase in research that has focused on the associations be- tween FLE and FLA, it not surprising that FLE research was extended to examine WTC, academic achievement, and self-perceived achievement. WTC in the FL learning context can be defined as “the probability that a person will choose to communicate, given the opportunity” (MacIntyre & Ayers- Glassey, 2021, p. 187) in the TL. WTC has long since been a popular outcome variable in applied linguistics (see Zhang et al., 2018) and has recently been ex- amined alongside FLE in a handful of studies (see Dewaele, 2019; Dewaele & Dewaele, 2018; Mahmoodzadeh & Khajavy, 2018). These studies have over- whelmingly found large positive correlations between FLE and WTC (Dewaele & Dewaele, 2018; Khajavy et al., 2018), leading Dewaele (2019) to conclude that teachers may boost WTC in the FL classroom by creating a positive environment in which FLE may flourish. This hypothesis will be tested in the meta-analysis in order to examine the extent to which the positive relationship between FLE and WTC is confirmed across the literature. Similar to WTC, the outcome variables of “real” and self-perceived profi- ciency in the TL have been at the center of applied linguistics studies for decades (see Sparks et al., 1997; Sparks et al., 2006). Indeed, surmising that the ultimate outcome of language learning should be to gain proficiency in the language, the variables of real and perceived proficiency in the TL can be seen as the ultimate outcome variables in the nomological network. As such, identifying variables that are associated with proficiency in the TL may provide opportunities to im- prove FL teaching and benefit FL learners in their ultimate goal of learning a language. “Real” proficiency in the TL is often measured through academic achievement in the Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 210 FL class, through either grades or scores on tests and exams (see Botes et al., 2020b). The relationship between FLE and academic achievement has been ex- amined in numerous studies over the past six years in order to determine whether positive emotion might be associated with proficiency in the TL, should academic achievement in the FL class be accepted as a proxy for “real” profi- ciency. These studies have mostly found moderate positive correlations be- tween FLE and academic achievement (see Dewaele, 2019; Jin & Zhang, 2021), but nonsignificant results have also been reported (Dewaele & Proietti Ergün, 2020). Similarly, self-perceived achievement in the TL has also been found to be positively correlated with FLE, however with varying effect sizes ranging from small (r = .09, p < .001; Botes et al., 2020a), to moderate (r = .25, p < .001; Dewaele & MacIntyre, 2014), to large (r = .43, p < .05; Piechurska-Kuciel, 2017). Both academic achievement and self-perceived achievement are undoubtedly positively associated with FLE, but the strength of the association is unclear. Both academic achievement and self-perceived achievement and their associa- tions with FLE were therefore included in the meta-analysis in an attempt to derive an indication of the effect sizes of the relations between the variables. In light of the considerations presented above, we examined the following hypotheses in the meta-analysis of FLE: Hypothesis 1: There is an overall moderate negative correlation between foreign language enjoyment and foreign language anxiety. Hypothesis 2: There is an overall moderate positive correlation between for- eign language enjoyment and willingness to communicate. Hypothesis 3: There is an overall moderate positive correlation between for- eign language enjoyment and academic achievement. Hypothesis 4: There is an overall moderate positive correlation between for- eign language enjoyment and self-perceived achievement. 3. Method 3.1. Search strategy In October 2021,1 the following four databases were searched: ERIC, Google Scholar, psychINFO, and psychARTICLES. An additional hand-search of four jour- nals where research on emotions in language learning is often published were 1 It should be noted that the study was originally planned and registered in September 2020. A search of the literature was made and results coded and analyzed. However, due to the low number of effect sizes and studies found in the initial search, the decision was made to wait an additional year for more studies regarding FLE to be published in order to make a Taking stock: A meta-analysis of the effects of foreign language enjoyment 211 carried out on 1 November 2021.2 Articles published in peer-reviewed journals, con- ference proceedings, and doctoral dissertations were examined for inclusion in the meta-analysis. Only studies published in English were considered. A single key phrase was used in the search, namely, foreign language enjoyment, and all studies examining FLE in relation to FLA, WTC, academic achievement, and self-perceived achievement were considered for inclusion. The project was pre-registered at the Centre for Open Science (https://osf.io/fjusz/?view_only=ec5236f4641f4ca1a06c0dea394f4148). Figure 1 Database search flowchart The database search yielded 762 results, of which 96 were duplicates or non-English-language results (see Figure 1). The titles and abstracts of 666 studies were examined, and 469 of these were excluded because they were not applica- ble to the meta-analysis at hand. The full texts of 197 studies were considered, with 53 retained in the meta-analysis. An additional call for unpublished research was made, with authors reaching out to known scholars in the emotions in lan- guage learning research field. This resulted in the addition of an unpublished data set and two manuscripts that were in press. A total of 56 studies were therefore included in this meta-analysis. Of the 56 studies, seven (12.5%) could be considered meta-analysis a worthwhile endeavor. Results from the initial search was published at the Cen- tre for Open Science for the sake of transparency, and can be found at: https://osf.io/fjusz/? view_only=ec5236f4641f4ca1a06c0dea394f4148. The number of studies found in the initial search increased from N = 354 to N = 762, and the number of studies included in the meta- analysis increased from N = 30 to N = 56. We therefore believe that a fruitful decision was in delaying the meta-analysis for a year, as the number of effect sizes increased considerably and thus resulted in more robust analyses (Huedo-Medina et al., 2006). 2 Modern Language Journal, Studies in Second Language Learning and Teaching, System, Language Learning. Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 212 “grey literature” because they consisted of three unpublished doctoral disserta- tions, one conference proceeding, two unpublished manuscripts, and an un- published data set. The full list of studies included in the meta-analysis can be found in the supplementary material as well as the registered data folder on the OSF (https://osf.io/fjusz/?view_only=ec5236f4641f4ca1a06c0dea394f4148). 3.2. Review strategy A total of 96 effect sizes were included in the meta-analysis from the 56 studies that were identified in the database search. The following inclusion criteria were applied: 1. Quantitative data requirements: Only studies reporting correlations be- tween FLE and FLA/WTC/academic achievement/self-perceived achieve- ment were included. The authors were contacted when data were miss- ing. Of the 13 authors who were contacted, eight responded with the necessary information. A summary of the number of available effect sizes per variable can be found in Figure 2. 2. Measures: No study was excluded on the basis of the measurement in- strument that was used. The scale or questionnaire used for each varia- ble was noted. 3. Study designs: No specific designs were excluded from the study. In the case of experimental studies with a pretest and a posttest, pretest data were used in the meta-analysis. In the case of group-difference studies, separate groups were entered into the database and specifically noted. 4. Moderators: Several possible moderators were coded, including average age, gender, linguistic distance between the first language and the target language, and nationality. However, no study was excluded on the basis of the presence or absence of moderators. Figure 2 Effect sizes per hypothesized relationship Taking stock: A meta-analysis of the effects of foreign language enjoyment 213 3.3. Coding strategy Publication characteristics such as authors, full title, year of publication, and publication medium were recorded. The demographic characteristics of each study (i.e., the sample size, gender distribution, average age, country, home lan- guage, and target language) were noted. The specific measure used to capture each variable was also recorded in addition to the means, standard deviations, and internal reliabilities as measured with Cronbach’s alpha (see Tables S1-S5 in the Supplementary materials). The average internal consistency reported was at an acceptable Cronbach’s α = .86. The effect sizes were recorded in the form of Pearson’s correlation coefficient (r). An attempt was made to record several moderating factors; however, only three moderators were sufficiently repre- sented in the data to be included in the study (i.e., average age, percentage of female participants in the sample and linguistic distance). As the majority of the participants were either first or foreign language learners and users of English, linguistic distance was coded via the quantitative linguistic distance measure provided by Chiswick and Miller (2005). Linguistic distance was measured on a scale from zero to one, with one representing the widest possible linguistic dis- tance (Chiswick & Miller, 2005). 3.4. Data-analysis strategy The hypothesized relationships between FLE and FLA/WTC/academic achieve- ment/self-perceived achievement were examined by converting the correlation coefficients (r) into Fisher’s z-scores. The conversion allows for the stabilization of the variance of the results, with a summary of the Fisher z scale retrans- formed into a summary correlation coefficient between each of the hypothe- sized relationships with FLE (Hedges & Olkin, 1985). For each of the four hypoth- esized relationships with FLE, a random effects model with maximum likelihood estimation was used, with heterogeneity assumed across studies. The degree of heterogeneity in the meta-analysis was quantified via the I2 index, which “can be interpreted as the percentage of total variability in a set of effect sizes due to true heterogeneity” (Huedo-Medina et al., 2006, p. 194). A rule-of-thumb interpretation of the I2 index indicates that around 25% is a low amount of heterogeneity across studies, with 50% and 75% in turn interpreted as medium and high amounts of heterogeneity, respectively (Higgins & Thomp- son, 2002). Beyond the I2 index, heterogeneity was also examined through τ2, which estimates between-studies variance. The τ2 and I2 are “directly compara- ble,” with an increase in one index resulting in an increase in the other (Huedo- Medina et al. 2006, p. 194). The I2 index further provides a useful indication as Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 214 to whether or not moderating factors are likely to be present in the relationships between variables. The effects of the three moderator variables (i.e., average age, percentage of female participants, and linguistic distance) on the effect sizes were examined via a random-effects meta-regression with a restricted maximum likelihood estimator. Publication bias was investigated by applying the trim and fill method, where effect sizes are recalculated to adjust for supposed publication biases (Duval & Tweedie, 2000). All analyses were conducted in R with the metafor package (Viechtbauer, 2010), with the figures generated by the Jamovi interface in R (Love et al., 2018). 4. Results 4.1. Descriptive results A total of 56 studies with k = 96 effect sizes were analyzed. Publication dates ranged from 2014 to 2022 (M = 2019.7). A total of N = 28,166 (M = 512.11, SD = 555.86) participants were included across the 56 studies, with 16,360 female participants and 10,960 male participants. The average age of participants was 19.45 years (SD = 4.46). A large majority of the participants were school pupils, learning languages in an FL class (N = 11,978). The remaining participants were learning an FL through university courses (N = 9100) or independent language schools (N = 991). A large majority of participants (81.7% of the total partici- pants) were learning English (N = 23,013), followed by Turkish (N = 592), Arabic (N = 188) and French (N = 130). 4.2. Hypothesis 1: FLE and FLA The hypothesized relationship between FLE and FLA was examined via k = 46 effect sizes (see Figure 3). FLE and FLA shared an overall moderate negative cor- relation of r = -.31 (k = 46; N = 20,946), with a 95% confidence interval of r = - .36 to r = -.26. The results were statistically significant (Z = -12.26, p < .001). Results further indicated a significant amount of heterogeneity across studies, Q(45) = 482.29, p < .001, I2 = 91.54%, with a moderate amount of variance across true effect sizes (τ2 = .024). Taking stock: A meta-analysis of the effects of foreign language enjoyment 215 Figure 3 Forest plot of FLE and FLA FLE and FLA therefore had a moderate negative relationship, in support of Hypothesis 1. Individuals with higher levels of enjoyment in FL learning are thus more likely to have lower levels of anxiety during the FL learning process. Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 216 4.3. Hypothesis 2: FLE and WTC FLE and WTC had a large positive correlation of r = .48 (k = 13, N = 5,466) with a 95% confidence interval of r = .38 to r = .58 (see Figure 4). The results were statistically significant (Z = 9.30, p < .001). The results further indicated a large amount of heterogeneity, Q(12) = 252,12, p < .001, I2 = 92.11%, with an equally large variance across studies (τ2 = .03). Figure 4 Forest plot of FLE and WTC A moderate to large positive correlation was therefore found between FLE and WTC, in support of Hypothesis 2. FL learners experiencing enjoyment in lan- guage learning are therefore more likely to be willing to communicate in the target language. 4.4. Hypothesis 3: FLE and academic achievement The meta-analysis of the 28 effect sizes that represented the relation between FLE and academic achievement resulted in a moderate positive correlation of r = .30 (k = 28, N = 8,899) with a 95% confidence interval of r = .24 to r = .37 (see Figure 5). Results were statistically significant (Z = 9.02, p < .001). A large amount of heterogeneity was present in the data, Q(27) = 206.66, p < .001, I2 = 87.5%, with a large amount of variance across studies (τ2 = .023). Botes et al. (2020c) Bensalem (2022) Lee (2020) (2) Barrios & Acosta-Manzano (2021) (2) Barrios & Acosta-Manzano (2021) (1) Dewaele (2019) Lee (2020) (3) Dewaele & Dewaele (2018) Lee (2020) (1) Khajavy et al. (2018) Mahmoodzadeh & Khajavy (2018) Kun et al. (2020) Lee et al. (2021) 0.20 [0.10, 0.30] 0.31 [0.20, 0.41] 0.32 [0.21, 0.43] 0.33 [0.15, 0.51] 0.40 [0.29, 0.51] 0.46 [0.32, 0.60] 0.46 [0.32, 0.60] 0.48 [0.33, 0.62] 0.50 [0.33, 0.67] 0.54 [0.49, 0.59] 0.62 [0.51, 0.72] 0.74 [0.57, 0.92] 0.89 [0.83, 0.94] RE Model 0.48 [0.38, 0.58] 0 0.2 0.4 0.6 0.8 1 Taking stock: A meta-analysis of the effects of foreign language enjoyment 217 Figure 5 Forest plot of FLE and academic achievement Hypothesis 3 was therefore supported in that FLE and academic achieve- ment showed a moderate positive correlation. FL learners who experience higher levels of enjoyment in the FL class are therefore more likely to have higher levels of academic achievement. 4.5. Hypothesis 4: FLE and self-perceived achievement A moderate positive correlation r = .27 (k = 9, N = 4,556) was found between FLE and self-perceived achievement (see Figure 6). The results were statistically sig- nificant (Z = 5.67, p < .001) with a 95% confidence interval of r = .18 to r = .37. A moderate amount of heterogeneity was present in the data, Q(8) = 52.76, p < .001, I2 = 83.25%, with a moderate amount of variance across studies (τ2 = .012). Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 218 Figure 6 Forest plot of FLE and self-perceived achievement Hypothesis 4 was therefore supported such that language learners with higher enjoyment in FL learning were more likely to have a higher self-percep- tion of their achievement. 4.6. Moderator analyses The meta-analysis of all four of the hypothesized relationships with FLE indi- cated high levels of heterogeneity (I2 > 80%). In an attempt to uncover the pos- sible causes of such heterogeneity, moderator analyses were carried out with the potential moderators of average age, percentage of female participants in the sample, and linguistic distance (see Table 1). The numeric value given to the linguistic distance between the target language and the first language of the FL learner was provided by Chiswick and Miller (2005). Unfortunately, only one statistically significant moderator effect was found. Average age was shown to moderate the relationship between FLE and self-perceived achievement (Slope = -.026, Z = -3.74, p < .001). Thus, the corre- lation between FLE and self-perceived achievement was also stronger in the case of younger FL learners than older language learners. However, the small number of studies included in this random-effects meta-regression (k = 8) may have resulted in a Type I error (Guolo & Varin, 2017). Therefore, the moderator analyses are presented here as a point of interest, but definitive conclusions cannot be drawn. Taking stock: A meta-analysis of the effects of foreign language enjoyment 219 Table 1 Moderator analyses k n Slope Z p-value 1. FLE and FLA Average age 40 20 172 .005 1.51 .13 Percentage of female participants 42 22 080 .002 1.21 .23 Linguistic distance 29 15 317 -.202 -.76 .44 2. FLE and WTC Average age 11 4989 -.009 -1.60 .11 Percentage of female participants 13 5466 -.001 -.21 .83 Linguistic distance 8 2897 -.13 -.40 .69 3. FLE and academic achievement Average age 18 7362 -.009 -.81 .41 Percentage of female participants 17 7882 -.002 -.49 .63 Linguistic distance 21 7757 .779 1.73 .08 4. FLE and self-perceived achievement Average age 8 4221 -.026 -3.74 < .001 Percentage of female participants 9 4810 .003 .78 .44 Linguistic distance 4 2401 -.179 -.82 .41 4.7. Publication bias analysis The results of the trim and fill random effects model for each of the hypothe- sized relationships with FLE can be found in Table 2. The trim and fill analysis seemed to indicate a minimal impact of publication bias affecting the meta-anal- ysis of the relationships between FLE and FLA (r = -.31 vs. r = -.37), FLE and aca- demic achievement (r = .30 vs. r = .33), and FLE and self-perceived achievement (r = .27 vs. r = .27). However, some publication bias appeared to be present in the analysis of FLE and WTC such that the trim and fill estimate (r = .56) was slightly larger than the summary estimate (r = .48). Table 2 Publication bias analyses k Summary estimate [95% CI] Trim and fill estimate [95% CI] FLE and FLA 46 -.31 [-.36; -.26] -.37 [-.41; -.31] FLE and WTC 13 .48 [.38; .58] .56 [.47; .66] FLE and academic achievement 28 .30 [.24; .37] .33 [.26; .39] FLE and self-perceived achievement 9 .27 [.18; .37] .27 [.17; .36] 4.8. Summary of results The meta-analysis found support for all four hypotheses presented in this study (see Table 3 for an overview). Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 220 Table 3 Summary of meta-analytic results k N r [95% CI] I2 τ2 FLE and FLA 46 20 946 -.31 [-.36; -.26] 91.54 .024 FLE and WTC 13 4556 .48 [.38; .58] 92.11 .031 FLE and academic achievement 28 8899 .30 [.24; .37] 87.50 .023 FLE and self-perceived achievement 9 4810 .27 [.18; .37] 83.25 .012 5. Discussion This meta-analysis of FLE and four associated individual difference variables demonstrated the position of FLE as a positive psychology variable with broad potential in the FL classroom. Enjoyment in the FL classroom was associated with lower anxiety, greater willingness to communicate in the TL, higher aca- demic achievement, and higher self-perception of achievement for FL learners. The results confirmed a moderate negative correlation between FLE and FLA (r = -.31, k = 46, N = 20,946). A higher level of FLE was therefore associated with a lower level of anxiety. As the debilitating effects of anxiety have been demonstrated in the literature (see MacIntyre, 2017), this moderately negative summary estimate may have practical implications for the FL classroom. How- ever, correlations were used in the meta-analysis, and as such, no directionality can be assumed. Indeed, we have argued in previous publications that the rela- tionship between FLE and FLA is most likely circular, as the lessening of anxiety can lead to greater enjoyment in the FL classroom, which in turn reduces anxiety (Botes et al., 2020a). Should this circularity argument hold, then the moderately negative summary estimate between FLE and FLA does have practical implications for FL teachers. There are several known strategies for decreasing FLA in the FL classroom, such as applying self-driven learning (Dupuy, 1997), using multimedia technologies (Oxford, 2017), practicing positive thinking (Kondo & Ying-Ling, 2004), and de-emphasizing grammar and pronunciation (Young, 1991). FL teach- ers who employ these strategies for lowering FLA may therefore reasonably ex- pect a subsequent increase in FLE, which may, in turn, yield an additional decrease in FLA. Further research is needed to confirm the circular relationship between FLA and FLE, yet on a speculative level, it does seem that either an increase in FLE or a decrease in FLA may result in a positive spiral in the FL classroom. In turn, the meta-analysis of FLE and WTC yielded a large positive correla- tion (r = .48, k = 13, N = 4,556). High levels of enjoyment in the FL classroom were therefore strongly associated with a greater willingness to communicate in the TL. As WTC has been linked to proficiency in the FL and as some theories (e.g., the pushed output hypothesis) maintain that the only effective means of acquiring a language is through active communication (Robson, 2015; Sato, 2020; Swain, 1995; Zhang et al., 2018), this large correlation between FLE and Taking stock: A meta-analysis of the effects of foreign language enjoyment 221 WTC has practical implications, particularly for FL teachers. Again, it should be noted that no directionality can be assumed as correlations were used in this meta-analysis, although WTC is generally utilized as an outcome variable in in- dividual difference models in applied linguistics (see Karimi & Abaszadeh, 2017; Yashima et al., 2004). Therefore, teachers who aim to have students who are more prepared to speak in the TL may utilize classroom strategies that have been found to increase enjoyment, such as encouraging students to prepare for FL class and taking time to relax when learning a FL (Kondo & Ying-Ling, 2004). FLE and academic achievement were found to have a moderate positive correlation (r = .30, k = 28, N = 8,899). In turn, FLE and self-perceived achieve- ment had a similar moderate positive correlation (r = .27, k = 9, N = 4,810). Thus, higher FLE is associated with higher academic achievement in the FL classroom as well as a higher self-perception of that achievement. No moderators were found to affect the relationship between FLE and academic achievement, alt- hough average age was found to moderate the relationship between FLE and self-perceived achievement. Younger language learners manifested a stronger association between FLE and self-perceived achievement than their older FL learning counterparts. FL teachers of children or adolescents can therefore take particular care to create an enjoyable FL class as the enjoyment of young FL learners is especially likely to be associated with good grades or exam scores. The results of all four variables (FLA, WTC, academic achievement, and self-perceived achievement) and their relationships with FLE spoke of the posi- tive associations enjoyment may have in the FL classroom. 6. Limitations The majority of studies included in the meta-analysis examined FLE within the context of learning English as a foreign language (EFL). Given the popularity of emotions as a topic of research in the EFL studies, this is somewhat unsurprising. However, the overwhelming number of EFL studies may have possibly skewed the results of the meta-analysis towards the context of EFL learning. Addition- ally, the number of EFL studies included may also have been impacted by the fact that we included only studies that were published in English. This may have resulted in unreported studies and effect sizes, but the lack of publication bias we found does somewhat mitigate this concern. Lastly, the use of Fisher’s z- scores and correlations implies that no conclusions can be drawn with respect to directionality. Although some relationships can be argued to be circular (e.g., FLE and FLA), this study cannot provide evidence as to such directionality. Lastly, the small number of effect sizes included in the moderator analyses can be seen as a limitation as such analyses may be considered under-powered (Valentine et Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 222 al., 2010). As such, the possibilities of Type I and Type II errors in the results of the moderator analyses cannot be ruled out. 7. Future research suggestions FLE has only been examined as defined by Dewaele and MacIntyre (2014) for the past eight years. Therefore, it should come as no surprise that our first research suggestions would be to further expand the research on FLE. As discussed in the literature review, current findings with regard to antecedents are at times contra- dictory, with some studies reporting significant differences in FLE with regard to gender, age, and multilingualism (Dewaele & MacIntyre, 2014; Dewaele et al., 2016) and yet others reporting no differences (Alezeni, 2020; Dewaele et al., 2018). Considerable research is therefore needed to establish research trends re- garding the antecedents of FLE. The nomological network of FLE should also be further extended. Only a handful of studies have examined personality, cognition, or classroom variables in relation to FLE (see Dewaele & MacIntyre, 2019; Wei et al., 2019). In addition, the expansion of the nomological network – and specifically the antecedents of FLE – may provide additional insights into the variability of FLE. The majority of summary estimates calculated in this study displayed high levels of heterogeneity (I2 > .80), indicating that the relationships with FLE examined in this study were likely exacerbated or impeded by other factors. It is only through additional research into FLE that these factors can be identified. Secondly, research is needed to provide clarity regarding the directionality of the hypothesized relationships between variables. As previously noted, the relationship between FLE and FLA can be theoretically argued to be circular or spiral, but empirical results are needed. The directionality of the relationship between FLE and WTC, academic achievement, and self-perceived achievement also ought to be investigated. It is often assumed that WTC, academic achieve- ment, and self-perceived proficiency are outcome variables (see Botes et al., 2020a, 2020b; Yashima et al., 2004), but the possibility of a feedback loop or an even entirely opposite causal direction cannot be disregarded. Lastly, FLE has become the personification of positive psychology in emotions in foreign language learning research (see MacIntyre, 2016). With the positive psy- chology movement currently blooming in the field of applied linguistics (Dewaele, Chen, et al., 2019; MacIntyre et al., 2019), researchers ought to consider expanding positive emotion research to include variables other than FLE. After all, one swallow does not make a summer, and other positive emotions such as hope, optimism, and pride may hold considerable promise in FL learning research, as they do in the fields of general educational psychology (Tetzner & Becker, 2018; Ciarrochi et al., 2007), and specifically mathematics learning (Lackaye & Margalit, 2008; Yates, 2002). Taking stock: A meta-analysis of the effects of foreign language enjoyment 223 8. Conclusion In this study, we set out to examine the current state of the literature regarding FLE and to conduct a meta-analysis of FLE and four individual difference varia- bles (FLA, WTC, academic achievement, and self-perceived achievement). The meta-analysis confirmed the positive associations of FLE in the FL classroom, as FLE was linked to lower FLA, a greater WTC, higher academic achievement, and higher self-perceived achievement. These positive associations confirmed the basic tenet of positive psychology, in that positive emotions such as FLE have a broadening power that can provide FL learners with the resources they need to meet the unique challenges of FL learning. Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 224 References3 *Albert, Á., Piniel, K., & Lajtai, Á. (2021). Investigating high school students’ emo- tions in connection with their EFL classes: A questionnaire study. In A. Fekete, M. Lehman, & K. Simon (Eds.), UPRT 2019: Empirical studies in English applied linguistics in honour of József Horváth (pp. 2-21). Lingua Franca Csoport. *Alenezi, S. M. (2020). Foreign language enjoyment and anxiety among the North- ern Borders University EFL students: Links to gender and majors. Journal for Educational, Psychological, and Social Research, 39(185), 1203-1233. https:// doi.org/10.21608/jsrep.2020.86081 *Amini, D. (2021). Relationship between Persian as foreign language learners’ anxiety, enjoyment and goal orientation. Journal of Teaching Persian to Speakers of Other Languages, 10(21), 75-100. https://doi.org/10.30479/ jtpsol.2021.15250.1525 *An, Z., Wang, C., Li, S., Gan, Z., & Li, H. (2021). Technology-assisted self-regu- lated English language learning: Associations with English language self- efficacy, English enjoyment, and learning outcomes. Frontiers in Psychol- ogy, 3763. https://doi.org/10.3389/fpsyg.2020.558466 *Barrios, E., & Acosta-Manzano, I. (2021). Factors predicting classroom WTC in Eng- lish and French as foreign languages among adult learners in Spain. Language Teaching Research. https://doi.org/10.1177%2F13621688211054046 *Bashori, M., van Hout, R., Strik, H., & Cucchiarini, C. (2021). Effects of ASR-based websites on EFL learners’ vocabulary, speaking anxiety, and language enjoy- ment. System, 99, 102496. https://doi.org/10.1016/j.system.2021.102496 *Bensalem, E. (2022). The impact of enjoyment and anxiety on English-language learners’ willingness to communicate. Vivat Academia. Revista de Comu- nicación, 91-111. https://doi.org/10.15178/va.2022.155.e1310 Botes, E., Dewaele, J.-M., & Greiff, S. (2020a). The power to improve: Effects of multilingualism and perceived proficiency on enjoyment and anxiety in foreign language learning. European Journal of Applied Linguistics, 8(2), 1- 28. https://doi.org/10.1515/eujal-2020-0003 Botes, E., Dewaele, J.-M., & Greiff, S. (2020b). The foreign language classroom anxi- ety scale and academic achievement: An overview of the prevailing literature and a meta-analysis. Journal for the Psychology of Language Learning, 2(1), 26-56. http://www.jpll.org/index.php/journal/article/view/botesetal *Botes, E., Dewaele, J.-M., & Greiff, S. (2020c). Individual difference variables in for- eign language learning [Unpublished raw data]. University of Luxembourg. 3 Starred references mark studies included in this meta-analysis. Taking stock: A meta-analysis of the effects of foreign language enjoyment 225 *Chen, Z., Zhang, P., Lin, Y., & Li, Y. (2021). Interactions of trait emotional intelli- gence, foreign language anxiety, and foreign language enjoyment in the for- eign language speaking classroom. Journal of Multilingual and Multicultural Development, 1-21. https://doi.org/10.1080/01434632.2021.1890754 Chiswick, B. R., & Miller, P. W. (2005). Linguistic distance: A quantitative measure of the distance between English and other languages. Journal of Multilin- gual and Multicultural Development, 26(1), 1-11. https://doi.org/10.1080/ 14790710508668395 Ciarrochi, J., Heaven, P. C., & Davies, F. (2007). The impact of hope, self-esteem, and attributional style on adolescents’ school grades and emotional well- being: A longitudinal study. Journal of Research in Personality, 41(6), 1161-1178. https://doi.org/10.1016/j.jrp.2007.02.001 *De Smet, A., Mettewie, L., Galand, B., Hiligsmann, P., & Van Mensel, L. (2018). Classroom anxiety and enjoyment in CLIL and non-CLIL: Does the target language matter? Studies in Second Language Learning and Teaching, 8(1), 47-71. https://doi.org/10.14746/ssllt.2018.8.1.3 *Dewaele, J.-M. (2019). The effect of classroom emotions, attitudes toward Eng- lish, and teacher behavior on willingness to communicate among English foreign language learners. Journal of Language and Social Psychology, 38(4), 523-535. https://doi.org/10.1177/0261927X19864996 *Dewaele, J.-M. (2022). The interplay between learner-internal variables and levels of anxiety and enjoyment among Spanish EFL learners. In K. Kersten & A. Winsler (Eds), Understanding variability in second language acquisi- tion, bilingualism, and cognition: A multi-layered perspective. Routledge. *Dewaele, J.-M., & Alfawzan, M. (2018). Does the effect of enjoyment outweigh that of anxiety in foreign language performance? Studies in Second Language Learning and Teaching, 8(1), 21-45. https://doi.org/10.14746/ssllt.2018.8.1.2 *Dewaele, J.-M., & Dewaele, L. (2017). The dynamic interactions in foreign lan- guage classroom anxiety and foreign language enjoyment of pupils aged 12 to 18. A pseudo-longitudinal investigation. Journal of the European Sec- ond Language Association, 1(1), 12-22. https://doi.org/10.22599/jesla.6 *Dewaele, J.-M., & Dewaele, L. (2018). Learner-internal and learner-external predictors of willingness to communicate in the FL classroom. Journal of the European Sec- ond Language Association, 2(1), 24-37. https://doi.org/10.22599/jesla.37 *Dewaele, J.-M., & MacIntyre, P. D. (2014). The two faces of Janus? Anxiety and en- joyment in the foreign language classroom. Studies in Second Language Learn- ing and Teaching, 4(2), 237-274. https://doi.org/10.14746/ssllt.2014.4.2.5 Dewaele, J.-M., & MacIntyre, P. D. (2016). Foreign language enjoyment and for- eign language classroom anxiety. The right and left feet of FL learning? In P. MacIntyre, T. Gregersen, & S. Mercer (Eds.), Positive Psychology in SLA Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 226 (pp. 215-236). Multilingual Matters. http://www.multilingual-matters.com/ display.asp?K=9781783095353 *Dewaele, J.-M. & MacIntyre, P. D. (2019). The predictive power of multicultural personality traits, learner and teacher variables on foreign language en- joyment and anxiety. In M. Sato & S. Loewen (Eds.), Evidence-based sec- ond language pedagogy: A collection of instructed second language ac- quisition studies (pp. 263-286). Routledge. *Dewaele, J.-M., & Proietti Ergün, A. L. (2020). How different are the relations be- tween enjoyment, anxiety, attitudes/motivation and course marks in pupils’ Italian and English as foreign languages? Journal of the European Second Lan- guage Association, 4(1), 45-57. https://doi.org/10.22599/jesla.65 Dewaele, J.-M., Chen, X., Padilla, A.M., & Lake, J. (2019). The flowering of positive psychology in foreign language teaching and acquisition research. Frontiers in Psychology, 10, 2128. https://doi.org/10.3389/fpsyg.2019.02128 Dewaele, J.-M., MacIntyre, P. D., Boudreau, C., & Dewaele, L. (2016). Do girls have all the fun? Anxiety and enjoyment in the foreign language class- room. Theory and Practice of Second Language Acquisition, 2(1), 41-63. https://www.ceeol.com/search/article-detail?id=415141 *Dewaele, J.-M., Özdemir, C., Karci, D., Uysal, S., Özdemir, E. D., & Balta, N. (2022). How distinctive is the foreign language enjoyment and foreign lan- guage classroom anxiety of Kazakh learners of Turkish? Applied Linguistics Review, 13(2), 243-265. https://doi.org/10.1515/applirev-2019-0021 Dewaele, J.-M., Witney, J., Saito, K., & Dewaele, L. (2018). Foreign language enjoy- ment and anxiety: The effect of teacher and learner variables. Language Teach- ing Research, 22(6), 676-697. https://doi.org/10.1177/1362168817692161 *Dewey, D. P., Belnap, R. K., & Steffen, P. (2018). Anxiety: Stress, foreign lan- guage classroom anxiety, and enjoyment during study abroad in Amman, Jordan. Annual Review of Applied Linguistics, 38, 140-161. https://doi.org/ 10.1017/S0267190518000107 Dupuy, B. C. (1997). Literature circles: An alternative framework for increasing intermediate FL students’ comprehension and enjoyment of texts in the target language. Mosaic: A Journal for Language Teachers, 5(1), 13-16. Duval, S., & Tweedie, R. (2000). A nonparametric “Trim and Fill” method of accounting for publication bias in meta-analysis. Journal of the American Statistical Associ- ation, 95(449), 89-98. https://doi.org/10.1080/01621459.2000.10473905 *Fraschini, N., & Tao, Y. (2021). Emotions in online language learning: Exploratory find- ings from an ab initio Korean course. Journal of Multilingual and Multicultural Development, 1-19. https://doi.org/10.1080/01434632.2021.1968875 Taking stock: A meta-analysis of the effects of foreign language enjoyment 227 Fredrickson, B. L. (2001). The role of positive emotions in positive psychology: The broaden-and-build theory of positive emotions. American Psychologist, 56(3), 218-226. https://psycnet.apa.org/doi/10.1037/0003-066X.56.3.218 Fredrickson, B. L. (2013). Positive emotions broaden and build. In P. Devine & A. Plant (Eds.), Advances in experimental social psychology (pp. 1-53). Aca- demic Press. https://doi.org/10.1016/B978-0-12-407236-7.00001-2 *Guo, Y. (2021). Exploring the dynamic interplay between foreign language en- joyment and learner engagement with regard to EFL achievement and ab- senteeism: A sequential mixed methods study. Frontiers in Psychology, 12, 766058 https://doi.org/10.3389%2Ffpsyg.2021.766058 Guolo, A., & Varin, C. (2017). Random-effects meta-analysis: The number of studies matters. Statistical Methods in Medical Research, 26(3), 1500- 1518. https://doi.org/10.1177/0962280215583568 Hedges, L. V., & Olkin, I. (1985). Statistical methods for meta-analysis. Academic Press. Higgins, J. P., & Thompson, S. G. (2002). Quantifying heterogeneity in a meta-analysis. Statistics in Medicine, 21(11), 1539-1558. https://doi.org/10.1002/sim.1186 Horwitz, E. K. (2010). Foreign and second language anxiety. Language Teaching, 43(2), 154-167. https://doi.org/10.1017/S026144480999036X Huedo-Medina, T. B., Sánchez-Meca, J., Marín-Martínez, F., & Botella, J. (2006). Assessing heterogeneity in meta-analysis: Q statistic or I2 index? Psycholog- ical Methods, 11(2), 193-206. https://doi.org/10.1037/1082-989X.11.2.193 *Hung, M. T. (2020). Teacher support and intrinsic motivation: The mediating roles of enjoyment, anxiety, and self-efficacy. Theses and Dissertations, 4217. https://scholarsjunction.msstate.edu/td/4217 *Jiang, Y., & Dewaele, J.-M. (2019). How unique is the foreign language class- room enjoyment and anxiety of Chinese EFL learners? System, 82, 13-25. https://doi.org/10.1016/j.system.2019.02.017 *Jin, Y., & Zhang, L. J. (2021). The dimensions of foreign language classroom en- joyment and their effect on foreign language achievement. International Journal of Bilingual Education and Bilingualism, 24(7), 948-962. https://doi.org/10.1080/13670050.2018.1526253 Karimi, M. N., & Abaszadeh, A. (2017). Autonomy-supportive teaching, willingness to communicate in English, motivation, and English speaking self-efficacy among EFL Learners: A structural equation modelling study. Iranian Journal of Applied Linguistics, 20(2), 113-156. https://ijal.khu.ac.ir/article-1-2825-fa.pdf *Kassem, H.M. (2021). EFL enjoyment of Saudi English majors and its relation to their achievement, autonomy and self-efficacy. ة ال ة ل ل ة ال المجلة سوهاج , 82(82), 61-90. https://doi.org/10.21608/edusohag.2021.137623 *Khajavy, G. H. (2021). Modeling the relations between foreign language en- gagement, emotions, grit and reading achievement. In P. Hiver, A. H. Al- Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 228 Hoorie, & S. Mercer (Eds.), Student engagement in the language class- room (pp. 241-259). Multilingual Matters. *Khajavy, G. H., MacIntyre, P. D., & Barabadi, E. (2018). Role of the emotions and class- room environment in willingness to communicate. Studies in Second Language Acquisition, 40(3), 605-624. https://doi.org/10.1017/S0272263117000304 Kondo, D. S., & Ying-Ling, Y. (2004). Strategies for coping with language anxiety: The case of students of English in Japan. ELT Journal, 58(3), 258-265. https:// doi.org/10.1093/elt/58.3.258 *Kralova, Z., Kamenicka, J., & Tirpakova, A. (2022). Positive emotional stimuli in teaching foreign language vocabulary. System, 104, 102678. https://doi.org/ 10.1016/j.system.2021.102678 *Kun, Y., Senom, F., & Peng, C. F. (2020). Relationship between willingness to communi- cate in English and foreign language enjoyment. Universal Journal of Educational Research, 8(10), 4853-4862. https://doi.org/10.13189/ujer.2020.081057 Lackaye, T., & Margalit, M. (2008). Self-efficacy, loneliness, effort, and hope: De- velopmental differences in the experiences of students with learning dis- abilities and their non-learning disabled peers at two age groups. Learning Disabilities: A Contemporary Journal, 6(2), 1-20. *Lee, J. S. (2020). The role of grit and classroom enjoyment in EFL learners’ will- ingness to communicate. Journal of Multilingual and Multicultural Devel- opment. https://doi.org/10.1080/01434632.2020.1746319 *Lee, J. S., Xie, Q., & Lee, K. (2021). Informal digital learning of English and L2 willingness to communicate: Roles of emotions, gender, and educational stage. Journal of Multilingual and Multicultural Development. https://doi.org/ 10.1080/01434632.2021.1918699 Li, C. (2020). A positive psychology perspective on Chinese EFL students’ trait emotional intelligence, foreign language enjoyment and EFL learning achievement. Journal of Multilingual and Multicultural Development, 41, 246-263. https://doi.org/10.1080/01434632.2019.1614187 *Li, C., & Xu, J. (2019). Trait emotional intelligence and classroom emotions: A positive psychology investigation and intervention among Chinese EFL learners. Frontiers in Psychology, 10, 2453. https://doi.org/10.3389/fpsyg .2019.02453 *Li, C., Dewaele, J.-M., & Jiang, G. (2020). The complex relationship between classroom emotions and EFL achievement in China. Applied Linguistics Re- view, 11(3), 485-510. https://doi.org/10.1515/applirev-2018-0043 *Li, C., Huang, J., & Li, B. (2021). The predictive effects of classroom environment and trait emotional intelligence on foreign language enjoyment and anxi- ety. System, 96, 102393. https://doi.org/10.1016/j.system.2020.102393 Taking stock: A meta-analysis of the effects of foreign language enjoyment 229 *Liu, E., & Wang, J. (2021). Examining the relationship between grit and foreign language performance: Enjoyment and anxiety as mediators. Frontiers in Psychology, 12. 666892. https://doi.org/10.3389%2Ffpsyg.2021.666892 *Liu, M., & Hong, M. (2021). English language classroom anxiety and enjoyment in Chinese young learners. SAGE Open. https://doi.org/10.1177%2F2158 2440211047550 Love, J., Dropmann, D., & Selker, R. (2018). Jamovi (0.9) [Computer software]. Jamovi Project. https://www.jamovi.org MacIntyre, P. D. (2016). So far so good: An overview of positive psychology and its con- tributions to SLA. In D. Gabryś-Barker & D. Gałajda (Eds.), Positive psychology per- spectives on foreign language learning and teaching (pp. 3-20). Springer. MacIntyre, P. D. (2017). An overview of language anxiety research and trends in its development. In C. Gkonou, M. Daubney & J.-M. Dewaele (Eds.), New insights into language anxiety: Theory, research and educational implica- tions (pp. 11-30). Multilingual Matters. MacIntyre, P. D., & Ayers-Glassey, S. (2021). Measuring willingness to communi- cate. In P. Winke & T. Brunfaut (Eds.), The Routledge handbook of second language acquisition and language testing (pp. 187-198). Routledge. MacIntyre, P. D., Gregersen, T., & Mercer, S. (2019). Setting an agenda for posi- tive psychology in SLA: Theory, practice, and research. Modern Language Journal, 103(1), 262-274. https://doi.org/10.1111/modl.12544 *Mahmoodzadeh, M., & Khajavy, G. H. (2018). Towards conceptualizing language learning curiosity in SLA: An empirical study. Journal of Psycholinguistic Re- search, 48(2), 333-351. https://doi.org/10.1007/s10936-018-9606-3 *Maican, M. A., & Cocoradă, E. (2021). Online foreign language learning in higher education and its correlates during the COVID-19 pandemic. Sus- tainability, 13(2), 781. https://doi.org/10.3390/su13020781 Mercer, S., & MacIntyre, P. D. (2014). Introducing positive psychology to SLA. Studies in Second Language Learning and Teaching, 4(2), 153-172. https:// doi.org/10.14746/ssllt.2014.4.2.2 *Mierzwa, E. (2018). The relationship between foreign language enjoyment and gen- der among secondary grammar school students. The Journal of Education, Cul- ture, and Society, 1(2), 117-135. https://doi.org/10.15503/jecs20182.117.135 *Moskowitz, S., & Dewaele, J.-M. (2020). The role of intellectual humility in foreign language enjoyment and foreign language classroom anxiety. Eurasian Journal of Applied Linguistics, 6(3), 521-541. https://doi.org/10.32601/ejal.834664 *Motiei, G. (2019). Learner perceptions of emotions in the foreign language class- room: A one-year study of the connections between anxiety, enjoyment, per- formance and individual differences in adult education [Doctoral dissertation, Universitat Pompeu Fabra]. https://www.tdx.cat/handle/10803/667129 Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 230 Oxford, R. (2017). Teaching and researching language learning strategies: Self- regulation in context. Routledge. *Özer, Z. (2020). Exploring the link between anxiety, enjoyment, and achieve- ment in foreign language classes [Doctoral dissertation, Hacettepe Uni- versity]. Retrieved from http://hdl.handle.net/11655/23260 *Pan, C., & Zhang, X. (2021). A longitudinal study of foreign language anxiety and enjoyment. Language Teaching Research. https://doi.org/10.1177/ 1362168821993341 Peterson, C. (2006). A primer in positive psychology. Oxford University Press. *Piechurska-Kuciel E. (2017). L2 or L3? Foreign language enjoyment and profi- ciency. In D. Gabryś-Barker, D. Gałajda, A. Wojtaszek, & P. Zakrajewski (Eds.), Multiculturalism, multilingualism and the self (pp. 97-111). Springer. *Resnik, P., & Dewaele, J.-M. (2020). Trait emotional intelligence, positive and neg- ative emotions in first and foreign language classes: A mixed-methods ap- proach. System, 94, 102324. https://doi.org/10.1016/j.system.2020.102324 *Resnik, P., & Dewaele, J.-M. (2021). Learner emotions, autonomy and trait emotional intelligence in ‘in-person’ versus emergency remote English foreign language teaching in Europe. Applied Linguistics Review. https:// doi.org/10.1515/applirev-2020-0096 *Rezazadeh, M., & Zarrinabadi, N. (2020). Examining need for closure and need for cognition as predictors of foreign language anxiety and enjoyment. Jour- nal of Multilingual and Multicultural Development, 41, 1-13. https://doi. org/10.1080/01434632.2020.1798972 Robson, G. G. (2015). The relationship between WTC and oral proficiency meas- urements in the study abroad context. International Education Studies, 8(12), 56-69. https://doi.org/10.5539/ies.v8n12p56 Sato, R. (2020). Examining fluctuations in the WTC of Japanese EFL speakers: Language proficiency, affective and conditional factors. Language Teach- ing Research. https://doi.org/10.1177/1362168820977825 Seligman, M. (2018). PERMA and the building blocks of well-being. The Journal of Positive Psychology, 13(4), 333-335. https://doi.org/10.1080/17439760. 2018.1437466 *Shao, K., Pekrun, R., Marsh, H. W., & Loderer, K. (2020). Control-value apprais- als, achievement emotions, and foreign language performance: A latent interaction analysis. Learning and Instruction, 69, 101356. https://doi.org/ 10.1016/j.learninstruc.2020.101356 Sparks, R. L., Ganschow, L., Patton, J., Artzer, M., Siebenhar, D., & Plageman, M. (1997). Prediction of foreign language proficiency. Journal of Educational Psychology, 89(3), 549. https://psycnet.apa.org/doi/10.1037/0022-0663.89.3.549 Taking stock: A meta-analysis of the effects of foreign language enjoyment 231 Sparks, R. L., Patton, J., Ganschow, L., Humbach, N., & Javorsky, J. (2006). Native language predictors of foreign language proficiency and foreign language aptitude. Annals of Dyslexia, 56(1), 129-160. https://doi.org/10.1007/ s11881-006-0006-2 Swain, M. (1995). Three functions of output in second language learning. In G. Cook & B. Seidelhofer (Eds.), Principle and practice in applied linguistics: Studies in honor of H. G. Widdowson (pp. 125-144). Oxford University Press. *Taufik, J. R., Tiatri, S., & Sari, M. P. (2021). English task value: The effect of for- eign language enjoyment and foreign language anxiety. In S. Tiatri & L. C. Seong (Eds.), International conference on economics, business, social, and humanities (pp. 40-44). Atlantis Press. Tetzner, J., & Becker, M. (2018). Think positive? Examining the impact of opti- mism on academic achievement in early adolescents. Journal of Personal- ity, 86(2), 283-295. https://doi.org/10.1111/jopy.12312 *Uzun, K. (2017). Compulsory English courses in higher education: A source of angst or thrill? The Journal of Language Teaching and Learning, 7(2), 1-20. https://dergipark.org.tr/en/pub/jltl/issue/42180/507815 Valentine, J. C., Pigott, T. D., & Rothstein, H. R. (2010). How many studies do you need? A primer on statistical power for meta-analysis. Journal of Educa- tional and Behavioral Statistics, 35(2), 215-247. https://doi.org/10.3102/ 1076998609346961 Viechtbauer, W. (2010). Conducting meta-analysis in R with the metafor Package. Jour- nal of Statistical Software, 36(1), 1-48. https://doi.org/10.18637/jss.v036.i03 *Wang, Y., Shen, B., & Yu, X. (2021). A latent profile analysis of EFL learners’ self- efficacy: Associations with academic emotions and language proficiency. System, 103, 102633. https://doi.org/10.1016/j.system.2021.102633 *Wei, H., Gao, K., & Wang, W. (2019). Understanding the relationship between grit and foreign language performance among middle school students: The roles of foreign language enjoyment and classroom environment. Frontiers in Psychology, 10. https://doi.org/10.3389/fpsyg.2019.01508 *Yang, B. (2021). Predicting EFL learners’ achievement from their two faces – FLE and FLCA. Theory and Practice in Language Studies, 11(3), 275-285. https://doi.org/10.17507/tpls.1103.07 Yashima, T., Zenuk-Nishide, L., & Shimizu, K. (2004). The influence of attitudes and affect on willingness to communicate and second language commu- nication. Language Learning, 54(1), 119-152. https://doi.org/10.1111/j. 1467-9922.2004.00250.x Yates, S. M. (2002). The influence of optimism and pessimism on student achievement in mathematics. Mathematics Education Research Journal, 14, 4-15. https://doi.org/10.1007/BF03217113 Elouise Botes, Jean-Marc Dewaele, Samuel Greiff 232 Young, D. J. (1991). Creating a low-anxiety classroom environment: What does language anxiety research suggest? Modern Language Journal, 75(4), 426-439. https://doi.org/10.2307/329492 *Zhang, H., Dai, Y., & Wang, Y. (2020). Motivation and second foreign language proficiency: The mediating role of foreign language enjoyment. Sustaina- bility, 12(4), 1302. https://doi.org/10.3390/su12041302 Zhang, J., Beckmann, N., & Beckmann, J. F. (2018). To talk or not to talk: A review of situational antecedents of willingness to communicate in the second language classroom. System, 72, 226-239. https://doi.org/10.1016/j.syst em.2018.01.003 *Zhang, T., Chen, X., Hu, J., & Ketwan, P. (2021). EFL students’ preferences for written corrective feedback: Do error types, language proficiency, and for- eign language enjoyment matter? Frontiers in Psychology, 12. https://doi.org/ 10.3389/fpsyg.2021.660564