DONE Vol 501-1328-1-ED (2)


International Journal of Research in Counseling and Education  
Volume 06  Number 01  2022 

ISSN: Print 2620-5750 – Online 2620-5769 
DOI: https://doi.org/10.24036/00497za0002 

 
Received April 1st, 2022; Revised April 28th, 2022; Accepted May 2nd, 2022 

 

   52  

http://ppsfip.ppj.unp.ac.id 
IJRiCE 

 
Survey of occupational stress among urban school librarians in 
Nigeria 
 
Vera Victor-Aigbodion1 
1University of Johannesburg, South Africa 
*Corresponding author, e-mail: verav@uj.ac.za 
  
 

Abstract 
Occupational stress is becoming increasingly common in all categories of workers. Due to the 
overwhelming demands of library customers, librarians are likely to suffer occupational stress as well.  
The objective of this study is to assess the occupational stress of urban school librarians in selected 
Nigerian public secondary schools. A descriptive survey was conducted and the Occupational Stress 
Scale (OSS) was used to collect data from 75 urban secondary school Librarians in South-East Nigeria. 
Means, standard deviations, and analysis of variance were used to analyze the results. Findings 
suggested that male and female secondary school librarians in the sampled urban secondary schools 
felt similarly about their occupation's level of stress. In addition, urban school librarians with 
bachelor's degrees reported higher levels of occupational stress. Another finding showed that urban 
school librarians who are married showed more occupational stress than those who are single, 
separated/divorced and widowed. Moreover, no significant differences were found between urban 
secondary school librarians who worked in mixed or single sex schools for occupational stress. In 
conclusion, occupational stress is present among urban school librarians in Nigerian public secondary 
schools. It was recommended that stress management interventions should be tailored to assist these 
school librarians in managing their level of stress. 
 
Keywords: Occupational stress, urban school librarians, South Eastern Nigeria. 

 
How to Cite: Victor-Aigbodion, V. (2022). Survey of occupational stress among urban school librarians 
in Nigeria.	International Journal of Research in Counseling and Education,	6(1) pp.52-59, DOI:   
https://doi.org/10.24036/00501za0002 

 
This is an open access article distributed under the Creative Commons 4.0 Attribution License, which permits unrestricted use, distribution, and 
reproduction in any medium, provided the original work is properly cited. ©2022 by Author. 

 
Introduction  

As humans, we are subjected to stress because of the complexities of life in both rural and urban settings. 
Virtually every aspect of the job environment can produce stress. Workers are constantly faced with difficulties 
or painful experiences, which creates stress and significantly reduces productivity (Bickford, 2005). 
Occupational stress has been found to be one of the leading causes of premature death around the world 
(Wilkinson, & Marmot, 2003). Occupational stress is contributing to conditions of overwork, job insecurity, 
low job satisfaction, and a lack of autonomy as a result of the current state of global economies (Bickford, 
2005). Studies have shown that occupational stress impedes employees' productivity and profitability, as well 
as their health and well-being (Suleman, Hussain, Shehzad, Syed, and Raja, 2018). As a result, clinical and 
health psychologists are increasingly involved in identifying high risk group members, either informally 
through direct contact with primary care physicians (Banjoko, Iwuji & Bagshaw, 2012) or formally through 
preventive programs (Kirk  & Brown, 2003).  

A definition of job stress provided by the US Department of Health and Human Services (NIOSH, 2007) is 
the physical and psychological reaction to demands of the job that does not match the capabilities, resources, 
or needs of the worker. There is a potential link between occupational stress and poor health. An occupational 
situation is stressful when the environment in which a person works does not match the capabilities, resources, 
or needs of the workers (Sieber, et al, 1996). Malik (2011) explains that occupational stress results from the 
interaction between people and their jobs and is characterized by internal conflicts that undermine each 
person's ability to function normally. According to Nikolaou and Tsaousis (2002), occupational stress is closely 
associated with the commitment of an individual to an organization as well as their physical and psychological 
wellbeing. The American Institute of Stress (2022) report on workplace stress identifies several factors that 



Vera Victor-Aigbodion       53   
 

 

International Journal of Research in Counseling and Education, Open Access Journal: http://ppsfip.ppj.unp.ac.id 

contribute to workplace stress, including long working hours, feeling unfairly treated at work, inadequate 
recognition and rewards for good work, lack of job security, and pressure to complete tasks without appropriate 
authority or resources. 

Due to the overwhelming demands of library customers, librarians are likely to suffer occupational stress 
as well (Wilkins, 2014). In secondary school, librarians experience stress, and if unmanaged, it can invariably 
lead to less work output as well as poor services, resulting in frustrated users (Ilo, 2016). Researchers have cited 
a variety of reasons as occupational stress triggers. A stressor can be physical, social or psychological (Birkett, 
2011). In a study conducted by Hyme, et al (2011), environmental factors accounted for about 40.5% of 
responses, while 10.5% of respondents felt stressed due to work overload. While researchers have in recent 
times studied different sources of occupational stress, librarians have received little attention. Despite being 
difficult to explain, the low level of research may be attributed to the belief that academic librarians are 
untasked (Angelica, 2018). The profession of librarianship has been known to have inherent stress over the 
years, and librarians have regularly provided information on how to recognize, prevent, and cope with 
occupational stress (Jordan, 2014). This study examined occupational stress among urban school librarians in 
southeastern Nigeria.  
 
Objectives 

The general objective of this study is to assess the occupational stress of urban school librarians in selected 
Nigerian public secondary schools. Specifically, the study sought to find out. 

1. The mean difference in level of stress of male and female school librarians. 
2. The mean difference in level of stress between mixed secondary school librarians and single-sex 

secondary school librarians. 
Hypothesis 

1. There is no significant mean difference in level of stress of male and female school librarians. 
2. There is no significant difference in level of stress between mixed secondary school librarians and 

single-sex secondary school librarians. 
 

Method 

A descriptive survey was conducted on 75 school librarians randomly selected from urban secondary 
schools in Southeast Nigeria. A simple random selection method was used to pick (25 males and 50 females) 
librarians. The faculty of education research ethics committee of the University of Nigeria approved this 
study. All the librarians who participated in this study provided informed consent. The Occupation Stress 
Scale (OSS) developed by Chen, Wong and Yu (2001) was used to collect data. The OSS contained 51 items, and 
covered six domains (factors intrinsic to the job, career and achievement, relating to others at work, safety, 
manager's role, and the interface between work and family life). The OSS is a 6 point Likert scale ranging from 
1(indicating no stress) to 6 (indicating high stress). Participants were asked to select the option that best 
described and represented their stress sources. Two research assistants assisted with the administration and 
retrieval of the OSS to the targeted group. All administered instruments were retrieved on the spot to minimize 
loss. All 75 questionnaires were filled out and returned, representing a 100% return rate. The research questions 
were answered with mean and standard deviation, while the hypotheses were tested with analysis of variance 
(F-test) at a significance level of 0.05. 

Results and Discussion 

Table 1: Descriptive statistics for occupational stress of urban secondary school librarians 

Gender Qualification Marital status School type N Mean SD 

Male Master's Married Single Sex 4 3.11 0.41 

Total 4 3.11 0.41 

Single Single Sex 4 2.98 0.09 

Total 4 2.98 0.09 

Total Single Sex 8 3.04 0.28 

Total 8 3.04 0.28 

Bachelors Married Single Sex 4 3.69 0.31 

Total 4 3.69 0.31 



 
International Journal of Research in Counseling and Education, Vol 6 No 1 2022             54 
 

 (Survey of occupational stress among urban school librarians in Nigeria)  

Gender Qualification Marital status School type N Mean SD 

Single Single Sex 6 3.26 0.23 

Total 6 3.26 0.23 

Widowed Single Sex 2 2.84 0.06 

Total 2 2.84 0.06 

Total Single Sex 12 3.34 0.38 

Total 12 3.34 0.38 

Total Married Single Sex 8 3.39 0.46 

Total 8 3.39 0.46 

Single Single Sex 10 3.15 0.23 

Total 10 3.15 0.23 

Widowed Single Sex 2 2.84 0.06 

Total 2 2.84 0.06 

Total Single Sex 20 3.22 0.37 

Total 20 3.22 0.37 

Female Master's Married Single Sex 1 3.22 0.00 

Mixed 5 2.99 0.09 

Total 6 3.03 0.13 

Divorced/Separated Mixed 1 2.84 0.00 

Total 1 2.84 0.00 

Total Single Sex 1 3.22 0.00 

Mixed 6 2.97 0.11 

Total 7 3.00 0.13 

Bachelors Married Single Sex 4 3.17 0.07 

Mixed 16 3.29 0.29 

Total 20 3.26 0.27 

Single Single Sex 5 3.39 0.15 

Mixed 12 3.28 0.18 

Total 17 3.31 0.17 

Divorced/Separated Mixed 9 3.25 0.28 

Total 9 3.25 0.28 

Widowed Mixed 2 2.95 0.01 

Total 2 2.95 0.01 

Total Single Sex 9 3.29 0.17 

Mixed 39 3.26 0.26 

Total 48 3.26 0.24 

Total Married Single Sex 5 3.18 0.06 

Mixed 21 3.22 0.29 

Total 26 3.21 0.26 



Vera Victor-Aigbodion       55   
 

 

International Journal of Research in Counseling and Education, Open Access Journal: http://ppsfip.ppj.unp.ac.id 

Gender Qualification Marital status School type N Mean SD 

Single Single Sex 5 3.39 0.15 

Mixed 12 3.28 0.18 

Total 17 3.31 0.17 

Divorced/Separated Mixed 10 3.21 0.29 

Total 10 3.21 0.29 

Widowed Mixed 2 2.95 0.01 

Total 2 2.95 0.01 

Total Single Sex 10 3.28 0.16 

Mixed 45 3.22 0.26 

Total 55 3.23 0.25 

Total Master's Married Single Sex 5 3.13 0.36 

Mixed 5 2.99 0.09 

Total 10 3.06 0.26 

Single Single Sex 4 2.98 0.09 

Total 4 2.98 0.09 

Divorced/Separated Mixed 1 2.84 0.00 

Total 1 2.84 0.00 

Total Single Sex 9 3.06 0.27 

Mixed 6 2.97 0.11 

Total 15 3.02 0.22 

Bachelors Married Single Sex 8 3.43 0.35 

Mixed 16 3.29 0.29 

Total 24 3.33 0.31 

Single Single Sex 11 3.32 0.20 

Mixed 12 3.28 0.18 

Total 23 3.29 0.19 

Divorced/Separated Mixed 9 3.25 0.28 

Total 9 3.25 0.28 

Widowed Single Sex 2 2.84 0.06 

Mixed 2 2.95 0.01 

Total 4 2.89 0.07 

Total Single Sex 21 3.32 0.30 

Mixed 39 3.26 0.26 

Total 60 3.28 0.27 

Total Married Single Sex 13 3.31 0.37 

Mixed 21 3.22 0.29 

Total 34 3.25 0.32 

Single Single Sex 15 3.23 0.24 



 
International Journal of Research in Counseling and Education, Vol 6 No 1 2022             56 
 

 (Survey of occupational stress among urban school librarians in Nigeria)  

Gender Qualification Marital status School type N Mean SD 

Mixed 12 3.28 0.18 

Total 27 3.25 0.21 

Divorced/Separated Mixed 10 3.21 0.29 

Total 10 3.21 0.29 

Widowed Single Sex 2 2.84 0.06 

Mixed 2 2.95 0.01 

Total 4 2.89 0.07 

Total Single Sex 30 3.24 0.31 

Mixed 45 3.22 0.26 

Total 75 3.23 0.28 

 

The result in Table 1 revealed the mean occupational stress scores of urban school librarians. It demonstrates 
a close range in occupational stress level experienced by male and female librarians. As indicated by standard 
deviation scores, male and female librarians in the sampled urban secondary schools did not feel differently 
about their occupational stress. The result in Table 1 also shows a mean difference in occupational stress of 
urban secondary school librarians between bachelor's and master's degree holders, with bachelor's degree 
holders demonstrating slightly higher level of occupational stress than master's degree holders. The standard 
deviation scores suggest that librarians with bachelor’s degree and those with master's degree from the 
sampled urban secondary schools had slightly differing rate about their occupational stress level.  

Also, result in Table 1 showing the mean scores of occupational stress of urban school librarians in respect 
to their marital status revealed married, single, divorced/separated and widowed. This shows urban school 
librarians that are married showed higher level of occupational stress with mean and standard deviation scores 
compared to urban school librarians that are widowed, divorced/separated and single. As shown in Table 1, 
urban secondary school librarians from single sex or mixed schools had similar opinions about their 
occupational stress level. The overall OSS score and the standard deviation among urban secondary school 
librarians suggest that they have moderate occupational stress level. 

Table 2. F-test analysis for mean difference between male and female librarians' occupational stress  

 
The F-test analysis in Table 2 compares the mean difference between male and female librarians' 

occupational stress. An F-value of 0.30 with degrees of freedom 1,73 and a significance level of .864 were 
obtained. Consequently, the results revealed that there was no significant mean difference between male and 
female urban secondary school librarians in terms of occupational stress (F(1,73)=.030, p=.864). In this sense, 
the null hypothesis, which asserts that there is no significant difference between male and female urban 
secondary school librarians in terms of occupational stress, is accepted. 

Table 3. F-test analysis for mean difference in occupational stress of urban secondary school librarians 
with bachelors and masters degrees 

 Sum of  
Squares 

df Mean  
Square 

F Sig. 

OSS * Qualification Between Groups (Combined) .776 1 .776 11.291 .001 

Within Groups 5.015 73 .069   

Total 5.791 74    

 Sum of  
Squares 

df Mean  
Square 

F Sig. 

OSS * Gender Between Groups (Combined) .002 1 .002 .030 .864 

Within Groups 5.789 73 .079   

Total 5.791 74    



Vera Victor-Aigbodion       57   
 

 

International Journal of Research in Counseling and Education, Open Access Journal: http://ppsfip.ppj.unp.ac.id 

An F-test is used in Table 3 to analyze the mean difference between master's and bachelor's degree holders 
among urban secondary school librarians in terms of their occupational stress level. The F-value was 11.291 
with 1, 73 degrees of freedom and a significant value of 0.001. Therefore, the results indicated that there was a 
significant difference in occupational stress level between master's and bachelor’s degree holders among urban 
secondary school librarians, with bachelor's degree holders demonstrating more occupational stress level 
(F(1,73)=11.291, p=0.001). Therefore, the null hypothesis, that there is no significant difference in occupational 
stress between master's and bachelor’s degree holders, is rejected. 

Table 4: F-test analysis for mean difference in occupational stress of urban secondary school librarians by 
marital status 

 Sum of  
Squares 

df Mean  
Square 

F Sig. 

OSS * Marital status Between Groups (Combined) .478 3 .159 2.130 .104 

Within Groups 5.313 71 .075   

Total 5.791 74    

Based on the F-test analysis, result in Table 4 shows the mean scores of occupational stress of urban school 
librarians in respect to their marital status. There was an F-value of 2.130 with degrees of freedom 3, 71 and a 
significant value of .104. As such, the results suggest that the level of occupational stress of urban school 
Liberians in respect to their marital status was not significantly different (F(3,71)=2.130, p=.104). The null 
hypothesis is therefore accepted that the level of occupational stress of urban school librarians in respect to 
their marital status. 

Table 5:  F-test analysis for mean difference in occupational stress of urban secondary school librarians in 
single sex and mixed school type 

 
Sum of  
Squares 

df 
Mean  
Square 

F Sig. 

OSS * School Type Between Groups (Combined) .008 1 .008 .095 .758 

Within Groups 5.783 73 .079   

Total 5.791 74    

Based on the F-test analysis, Table 5 shows the mean level of occupational stress among urban secondary 
school librarians in single sex and mixed school type. There was an F-value of .095 with degrees of freedom 1, 
73 and a significant value of .758. As such, the results suggest that the level of occupational stress among urban 
secondary school librarians was not significantly different by school type (F (1, 73) =.095, p=.758). The null 
hypothesis is therefore accepted that the level of occupational stress among urban secondary school librarians 
is not significantly different in single sex and mixed school type. 

Discussion 

The general objective of this study is to assess the level of occupational stress among urban school librarians 
in selected Nigerian public secondary schools. According to the study, male and female school librarians in the 
sampled urban secondary schools did not feel differently about their occupational stress levels. Thus, there was 
no significant difference in occupational stress levels between male and female secondary school librarians in 
urban areas. This finding supports the previous findings of McCarty et al. (2007) who revealed that even 
though there are similar trigger of occupational stress among male and female, male and female workers did 
not report significant different levels of occupational stress. In a similar vein, Swanson, Power and Simpson 
(1998) in their study revealed that there was no significant gender difference in the occupational stress level 
of their studied participants and further stated that occupational stress were significantly related to 
increased role complexity. This finding is further upheld by Archibong, Bassey and Effiom (2010) who 
attributed gender difference in occupational stress to the interface between the official workload of female 
workers and managing their homes. According to Tung (2018), female workers experienced substantially 
lower levels of self-perceived occupational stress than their male counterparts while Antoniou, Davidson 
and Cooper (2003) in their study found significant differences between male and female levels of 
occupational stress with female demonstrating a significant higher level than their male counterparts. 

Also, the finding of this study revealed that urban secondary school librarians with bachelor’s degree and 
those with master's degree from the sampled urban secondary schools had slightly differing rate about their 
occupational stress level. Therefore, the results indicated that there was a significant difference in occupational 



 
International Journal of Research in Counseling and Education, Vol 6 No 1 2022             58 
 

 (Survey of occupational stress among urban school librarians in Nigeria)  

stress level between master's and bachelor’s degree holders among urban secondary school librarians, with 
bachelor’s degree holders demonstrating more occupational stress. This finding is similar to that of Yang, Wang 
and Jin (2006) who opined that workers with lower qualification experience higher level of stress on the job. 
The study also found out that, urban school librarians that are married showed higher level of occupational 
stress compared to urban school librarians that are widowed, divorced/separated and single. As such, the 
results suggest that the level of occupational stress of urban school librarians in respect to their marital status 
was not significantly different. According Michael, et al. (2009), married women demonstrated a significant 
higher occupational stress level than their unmarried counterparts’. This reason is upheld due to the 
demanding nature of family caring which is reasonably on the woman’s shoulder. On the other hand, Zhao, He, 
Lovrich, and Cancino (2003) revealed that marital status inserts marginal effect on occupational stress. The 
authors further stated that married men and women were found to be experiencing a higher level of 
occupational stress than their unmarried colleagues. Also, according to Salim, Shams, Zidan, and Aboal (2019), 
stated that the multifaceted stress of married working women with responsibilities at various arenas may be 
the reason for their higher level of occupational stress. In addition, the study found out that urban secondary 
school librarians from single sex or mixed schools had similar opinions about their occupational stress level. 
As such, the results suggest that the level of occupational stress among urban secondary school librarians was 
not significantly different by school type (mixed or single sex school). Accordingly, it was recommended that 
stress management interventions should be tailored to the specific needs of those school librarians who are 
experiencing high levels of stress. 

Conclusion 

In conclusion, occupational stress was shown to be a critical workplace issue for males and females within 
the secondary school library workforce. Therefore, school authorities should make a concerted effort to reduce 
librarians' stress at work through effective policy implementation and best workplace practices. The current 
results should be validated with other samples, if possible, and with other measures of occupational stress in 
order to gain a more concrete insight into the issue. 

 

References 

Angelica, S. L. (2018). Work-Life Balance Policy Change Proposal for Athens Country Public Libraries. (Doctoral 
dissertation), Ohio University. 

Antoniou, A. S. G., Davidson, M. J., & Cooper, C. L. (2003). Occupational stress, job  satisfaction and health state 
in male and female junior hospital doctors in Greece. Journal  of Managerial Psychology, 18 (6), 592-
621. 

Archibong, I. A., Bassey, A. O., & Effiom, D. O. (2010). Occupational stress sources among  university academic 
staff. European Journal of Educational Studies, 2(3), 217-225. 

Banjoko, S.A., Iwuji, I.I., & Bagshaw, K. (2012). The Performance of the Nigerian  Manufacturing Sector: A 52-
Year Analysis of Growth and Retrogression (1960- 2012).  Journal of Asian Business Strategy, 2, 177-
191. 

Bickford, M. (2005). Stress in the Workplace: A General Overview of the Causes, the Effects, and the Solutions. 
Canadian Mental Health Association Newfoundland and Labrador Division 44. 

Birkett, M. A. (2011). The Trier Social Stress Test protocol for inducing psychological stress. JoVE (Journal of 
Visualized Experiments), 56, e3238. 

Chen, W. Q., Wong, T. W., & Yu, T. S. (2001). Reliability and validity of the Occupational  Stress Scale for 
Chinese off-shore oil installation workers. Stress and Health: Journal of  the International Society for 
the Investigation of Stress, 17(3), 175-183. 

Hymel, P. A., Loeppke, R. R., Baase, C. M., Burton, W. N., Hartenbaum, N. P., Hudson, T. W., & Larson, P. W. (2011). 
Workplace health protection and promotion: a new pathway for a healthier—and safer—workforce. 
Journal of Occupational and Environmental Medicine, 53(6), 695-702. 

Ilo, P. I. (2016). Managing stress among librarians in selected university libraries in Ogun State Nigeria. Library 
Philosophy and Practice, 1343.  

Kirk, A. K., & Brown, D. F. (2003). Employee assistance programs: A review of the management of stress and 
wellbeing through workplace counselling and consulting. Australian Psychologist, 38(2), 138-143. 

Malik, N. (2011). A study on occupational stress experienced by private and public banks employees in Quetta 



Vera Victor-Aigbodion       59   
 

 

International Journal of Research in Counseling and Education, Open Access Journal: http://ppsfip.ppj.unp.ac.id 

City. African Journal of Business Management, 5(8), 3063-3070. 

McCarty, W. P., “Solomon” Zhao, J., & Garland, B. E. (2007). Occupational stress and burnout between male and 
female police officers: Are there any gender differences?. Policing: An International Journal, 30(4), 
672-691. 

Michael, G., Anastasios, S., Helen, K., Catherine, K., & Christine, K. (2009). Gender differences in experiencing 
occupational stress: the role of age, education and marital status. Stress and Health: Journal of the 
International Society for the Investigation of Stress, 25(5), 397-404. 

Nikolaou, I., & Tsaousis, I. (2002). Emotional intelligence in the workplace: Exploring its effects  on 
occupational stress and organizational commitment. The International Journal of 
 Organizational Analysis, 10(4), 327-342. 

Salim, M. E. H. E., Shams Eldine, A. A. W. A. M., Zidan, O. O., & Aboal Asaad, M. M. (2019). Occupational stress 
among banking employees at El Mansoura City. The Egyptian Journal of Hospital Medicine, 76(6), 
4445-4451. 

Shupe, E. I., & Pung, S. K. (2011). Understanding the changing role of academic librarians from a psychological 
perspective: A literature review. The Journal of Academic Librarianship, 37(5), 409-415. 

Sieber, W. K., Stayner, L. T., Malkin, R., Petersen, M. R., Mendell, M. J., Wallingford, K. M., & Reed, L. (1996). The 
National Institute for Occupational Safety and Health indoor  environmental evaluation experience. 
Part Three: Associations between environmental factors and self-reported health conditions. Applied 
Occupational and Environmental Hygiene, 11(12), 1387-1392. 

Suleman, Q., Hussain, I., Shehzad, S., Syed, M. A., & Raja, S. A. (2018). Relationship between perceived 
occupational stress and psychological well-being among secondary school heads in Khyber 
Pakhtunkhwa, Pakistan. PloS one, 13(12), e0208143. 

Swanson, V., Power, K. G., & Simpson, R. J. (1998). Occupational stress and family life: A comparison of male 
and female doctors. Journal of Occupational and Organizational Psychology, 71(3), 237-260. 

The American Institute of Stress (2022). workplace Stress.  Retrieved from 
 https://www.stress.org/workplace-stress 

Tung, R. L. (2018). Comparative analysis of the occupational stress profiles of male versus female 
administrators. Journal of Vocational Behavior, 17(3), 344-355. 

US Department of Health and Human Services. (2007). National Institute for Occupational Safety and Health-
NIOSH. 

Wilkins, J., M. (2014). All stressed out, but does anyone notice? Stressors affecting public libraries. Journal of 
Library Administration, 54(4), 291-307. 

Wilkinson, R. G., & Marmot, M. (Eds.). (2003). Social determinants of health: the solid facts. World Health 
Organization. 

Yang, X. W., Wang, Z. M., & Jin, T. Y. (2006). Appraisal of occupational stress in different gender, age, work 
duration, educational level and marital status groups. Wei Sheng Yan  Jiu= Journal of Hygiene 
Research, 35(3), 268-271. 

Zhao, J. S., He, N. P., Lovrich, N., & Cancino, J. (2003). Marital status and police occupational stress. Journal of 
Crime and Justice, 26(2), 23-46.