Abstract
BACKGROUND:
Individuals diagnosed with schizophrenia often experience major limitations in returning to work despite participating in rehabilitation programs.
OBJECTIVE:
The aim of the study was to determine whether individuals who were diagnosed with schizophrenia experienced improved return to work rates, quality of life and self-efficacy beliefs after participating in an intervention program that utilizes the Model of Occupational Self-Efficacy (MOOSE).
METHOD:
Nine (n = 9) individuals who were diagnosed with schizophrenia participated in the study. The research study specifically utilized a pre- and post-intervention research design. In order to gather data from the participants, the WHO Quality of Life Questionnaire and Self-Efficacy Questionnaires were used to determine whether the individual living with schizophrenia’s quality of life and self-efficacy beliefs improved after participating in a vocational rehabilitation program.
RESULTS:
All participants in this study presented with an improvement in Return-to-Work Rates, Self-Efficacy Beliefs and Quality of Life scores. The results of the study revealed a 100% return to work rate, a statistically significant effect of the intervention (i.e., MOOSE) on Self-Efficacy beliefs, measured using the Generalized Self-Efficacy Scale, F(1, 8) = 6.606, p = 0.03.*.
CONCLUSION:
The findings of this study indicated that MOOSE is a useful model to facilitate the return to work of individuals living with schizophrenia. It is also suggested that cognitive rehabilitative activities, life skills and work skills training in a real work environment be included as part of the vocational rehabilitation program.
Introduction
Schizophrenia has significant consequences, and often results in an individual’s social, economic and health status being affected (Phanthunane et al., 2010). In particular, these individuals experience major issues in social functioning, with work being one of the main areas of social stigmatization (Marwaha & Johnson, 2005). The high unemployment rate amongst mental health care users, specifically those with a diagnosis of schizophrenia, motivated the researcher to explore how a novel vocational rehabilitation program could enhance the work potential of individuals diagnosed with schizophrenia. The MOOSE was developed by Soeker (2012) as a strategy to effectively return individuals with brain injuries to work, and therefore ultimately improve the employment rate and quality of life (QOL) for these individuals. The MOOSE has been proven to be an effective model in enhancing the work skills of individuals who sustained a TBI. According to Soeker (2017) the MOOSE was effective in facilitating a 100% return to work rate for individuals with TBI. The results of the study revealed a statistically significant effect of the intervention (i.e. MOOSE) on cognitive functioning measured using the Montreal Cognitive Assessment Scale, F(4, 6) = 15.95. Owing to the MOOSE being a newly developed model, there was a need to examine the potential of MOOSE to enhance the return-to-work rate of individuals with schizophrenia who were receiving intervention at an acute psychiatric hospital in Cape Town, South Africa.
Literature review
Epidemiology of schizophrenia
As stated by Kaplan and Sadock (2000), schizophrenia is one of the most deceptive, slowly progressive and disabling of the mental illnesses. Sahu (2015) further describes schizophrenia as a devastating, disabling brain disorder affecting the socio-occupational functioning competencies of individuals in their daily life activities, such as communication, self-care, work, and interpersonal relationships. A systematic review of epidemiological data conducted by Charlson et al. (2018) showed that the lifetime prevalence of schizophrenia rose from 13.1 million cases in 1990 to 20.9 million cases in 2016, globally, with the higher prevalence estimates found in developed countries as opposed to less developed countries.
Quality of life
Quality of life could be viewed as an important treatment outcome measure particularly for individuals diagnosed with schizophrenia. However, there have been few studies that specifically focused on QOL as an outcome linked to intervention programs as the focus of these studies has been on symptomatology (Eack & Newhill, 2007). According to Lehman (1988), QOL interventions have been mainly focused on improving an individual’s health status, access to resources, the individual’s subjective quality of life and satisfaction with life. The above studies therefore contribute to the need for studies to use QOL as an outcome measure in order to determine whether vocational rehabilitation/work skills programs enhance an individual’s ability to return to work as well as their QOL.
Self-efficacy and schizophrenia
Self-efficacy theory asserts that functional capacity alone is insufficient to generate a desired behavior (Bandura, 1982). Self-efficacy is also strongly associated with an individual’s judgement of his or her abilities before and during an event. These judgements therefore influence his or her thoughts, emotions and actions as well as the amount of energy that individuals are willing to utilize in order to complete an action. It could therefore be argued that individuals with a strong sense of self-efficacy will often be motivated to try harder to complete an activity than those with a poor sense of self-efficacy. Research has shown that higher levels of perceived self-efficacy led to an increase in performance while engaging in occupations such as work (Bandura, 1982; 1997). Unfortunately, many of the effects of schizophrenia, such as cognitive deficiencies, poor assertive and interpersonal relational skills, or a limited sense of direction in one’s life, all contribute to reduced feelings of efficiency and competence.
Examining the global trends of individuals with schizophrenia Returning to Work
Internationally in a country like Sweden the employment rate for individuals living with schizophrenia was estimated as being 20%, with the majority of individuals with schizophrenia being depended on a disability pension. Furthermore, in a population wide study conducted in Norway, the employment rate was estimated as being 10.24% (Evensen et al., 2015). According to the national mid-year population estimates of 2017, South Africa has a population of 56.52 million (Statistics South Africa, 2017). Recent statistics on the number of people with disability in South Africa are non-existent. However, based on the 2011 census, about 7.5% of the population had disabilities (Statistics South Africa, 2011). Should this statistical measure have remained constant, then South Africa’s current estimate of people with disabilities would be 4 239 000. Although a specific estimate of the employment rate for people living with schizophrenia in South Africa is not available at the time of writing this article, it could be argued that the employment rate is as low as 0.7% of the economically active people with disabilities in South Africa (South African Department of Labour, 2014). According to the 17th Commission for Employment Equity Annual Report of 2016 to 2017, the number of persons with disabilities employed has decreased since 2014 (Watkins, 2021).
Intervention strategies that facilitate RTW: Supported employment approach
Supported employment aims to facilitate the process of RTW for individuals with schizophrenia (including other mental illnesses) (Nuechterlein et al., 2008). A systematic review conducted in the United States of America, comprised eleven randomized control trials, and highlighted the success and positive outcomes achieved by supported employment in enabling individuals with disability to participate in competitive employment (Drake, 2018). Based on this review, individuals who participated in supported employment were more likely to be included in competitive employment (Drake, 2018).
Model of Occupational Self-Efficacy
The Model of Occupational Self-Efficacy developed by Soeker (2012) is an occupational therapy practice model designed to effectively return individuals with brain injury to work. The MOOSE consists of 4 stages (see Fig. 1) namely,

(Permission was granted from the author to utilize the diagram of the MOOSE).
This study aimed to determine whether MOOSE is an effective model to enhance the self-efficacy skills of individuals with schizophrenia and their ability to return to work. The objectives were: To determine whether MOOSE improves an individual with schizophrenia’s ability to return work after participating in a vocational rehabilitation program To determine whether MOOSE improves an individual with schizophrenia’s quality of life and self-efficacy skills after participating in a vocational rehabilitation program To determine whether there is an association between an individual with schizophrenia’s self-efficacy skills and their quality of life after participating in a vocational rehabilitation program
Methods
In the current study, a pre-post non experimental research design was utilized. With pre-experimental designs, the researcher studies a single group and provides an intervention during the experiment (Creswell, 2014).
Population and sampling
Simple random sampling was used to select nine (n = 9) participants from the statistical records of the occupational therapy department of one psychiatric hospital in the Western Cape, South Africa. The intake of patients at the psychiatric hospital is about 9 new participants over a period of 1 month, the researchers opted to focus the pilot study on 9 participants. A sample formula was not used to calculate a minimum sample, however according to Connely (2008), it is acceptable to pilot a study on 10% of a total sample, should the total population be 90 (i.e. 90 participants usually seen over a period of 10 months). The sample of the participants were identified based on the following inclusion criteria: the participants were diagnosed with schizophrenia according to the DSM 5, were employed in the open labor market prior to their admission, lived in the Western Cape, Metropole and were over the age of 18 years. Individuals who showed evidence of significant and habitual substance abuse, and individuals with active symptoms related to a psychiatric condition were excluded from the study. Nine individuals volunteered to participate in the study and all of them concluded their participation in the study.
MOOSE intervention program
The participants in this research study engaged in the vocational rehabilitation process using the MOOSE. Before the participants participated in the program, they had to provide informed consent and were informed about their right to withdraw from the study at any stage of the study. In
Reliability and validity
The researchers utilized the WHOQOL-SRPB Scale and the Generalized Self-Efficacy Scale. The WHOQOL-SRPB as a research instrument was found to have good reliability (a high internal consistency) and validity that grants the suitability of the tool for a person with schizophrenia (WHO, 2012). The WHOQOL- SRPB tool has six domain scores: physical health (3 items), psychological health (5 items), level of independence (4 items), social relationships (3 items), environmental health domain (8 items) and spiritual/religion/personal beliefs (9 items). Domain scores are scaled in a positive direction (i.e., higher scores correspond to a better quality of life). The Generalized Self-Efficacy Scale (GSE), is a 10-item self-report instrument that aims to measure an individual’s perception of self-efficacy (Schwarzer & Jerusalem, 1995). The scale was developed to assess a general sense of perceived self-efficacy with the aim of predicting an individual’s ability to cope with daily challenges and adaptation after experiencing a stressful life event. In samples from 23 nations, Cronbach’s alphas ranged from 0.76 to 0.90, with the majority in the high 0.80 s. The participants responded appropriately, and the questionnaire proved to have good face and content validity.
Data collection and data analysis
Prior to participation in the vocational rehabilitation program (MOOSE), the participants completed the Self-Efficacy Scale questionnaire and the QOL-SRPB. A score was obtained and this served as the baseline assessment of the participant’s perceptions related to their QOL and Self-Efficacy. The same questionnaires were completed after the program ended. Medical information was obtained from the client‘s medical records from the psychiatric hospital in Cape Town. Descriptive data were summarized in tables for analysis. Values were accepted as significant at the 5 % level (p < 0.05). Data were first captured in excel and analyzed using SPSS along with the assistance of a statistician. The repeated measure ANOVA was used to analyze the data.
Results
In Table 1 the characteristics of the 9 participants [n = 9] reveal that [1/9] participants were female and [8/9] were male participants. Furthermore, the mean age of the participants was
Demographics of participants
Demographics of participants
Table 2 describes the number of sessions that each participant took at each stage of the research process. In stage 1 of the model, the average number of sessions was 2 sessions per individual. In stage 2 of the model, the average number of sessions was 6 sessions per individual. In stage 3 of the model, the average number of sessions was 4 sessions per individual. In stage 4 of the model, the average number of sessions was 2 sessions per individual. The average duration of the intervention consisted of 14 sessions that spanned over a period of 3 months.
Depicts the number of sessions given to each participant in each stage
Table 3 describes the mean scores pre intervention and post intervention, the table indicates that the mean scores improved from the pre-intervention phase to post-intervention phase i.e., after stage 4 of the model.
Quality of life as a percentage and mean scores (Pre- and Post-Intervention)
Self-efficacy
The results of the participants after participating in the intervention program revealed a statistically significant effect of the intervention on self-efficacy of life, the participants’ self-efficacy improved after participating in the rehabilitation program, F(1, 8) = 6.606, p = 0.03.* The pre intervention self-efficacy score, 95% CI [24.56, 32.77] and post intervention self-efficacy score, 95% CI [28.84, 36.05] (see Graph 1). In the latter result, the multivariate test called the Wilks’ Lambda was used. The effect size was also calculated according the methods described by (Lipsey & Wilson, 2001). The effect size being 0.59, which is regarded as a strong indicator of the effect of the intervention in enhancing self-efficacy of individuals with schizophrenia.
Quality of life
Quality of life in relation to the current study was measured as a mean total score across all 6 domains as described by the QOL questionnaire. However, when analyzing the QOL of the participants, the results did not reveal a statistically significant effect of the intervention on the participant’s quality of life, F(1, 8) = 0.000, p = 1.00. The pre intervention quality of life score, 95% CI [12.58, 14.75] and post intervention quality of life score, 95% CI [12.13, 15.20] (see Table 3 and Graph 2). In the latter result, the multivariate test called the Wilks’ Lambda was used.
Quality of life and its association with self-efficacy
The results indicated that there was a positive relationship between the two variables i.e., Post QOL and Post Self-Efficacy score, r = 0.684, n = 9, p = 0.042* (see Graph 3).
Although there was no statistical significance obtained regarding the positive association between the intervention (MOOSE) and QOL. When analyzing the pre-intervention total QOL mean scores to the post-intervention total QOL scores, there is a clear indication that there was an improvement in Domain 2 and Domain 4 of the QOL domains (see Graph 4). The score according to the WHO QOL domain score ranging from 0 representing a low score and 20 representing a high score. The pre intervention mean score for Domain 2 (

Pre vs post self-efficacy results.

Pre vs post quality of life results.

Post QOL vs post self-efficacy results.

Pre vs post QOL domain results.
All participants in the current study were unemployed before participation in the study; however, after the completion of the 5-month intervention program, all participants (n = 9) returned to work in the open labor market or competitive employment. This result was regarded as good as the aim of the MOOSE vocational rehabilitation program is to enhance the individual with disability’s work skills to the extent that they can obtain employment in the open labor market or competitive employment. The participants in the current study also reported a reduction in negative symptoms related to schizophrenia, and specifically reported experiencing no positive symptoms related to schizophrenia.
Discussion
Return to work after participation in the vocational rehabilitation program (MOOSE)
The results of the current study indicate that all unemployed participants (n = 9) were employed after they had completed rehabilitation in MOOSE as a vocational rehabilitation model. The intervention consisted of, on average, 8 sessions per stage of the MOOSE model and that the intervention lasted for a period of 3 months. It is important to note that MOOSE utilized concepts that link to supportive employment and that supportive employment requires ongoing support to clients or participants. This ongoing support often in real life work settings, is time consuming, is expensive and may take many months before the individual with disability can work independently (Substance Abuse and Mental Health Services, 2009). In relation to other literature, MOOSE has been shown to be an effective model in returning to work other populations of individuals with disability, namely those with traumatic brain injury (TBI). A study conducted by Soeker and Pape (2019) indicated that the MOOSE facilitated a 100% RTW rate for individuals diagnosed with a mild and moderate TBI. The model also proved to improve the cognitive skills of individuals with TBI.
Quality of life and self-efficacy (QOL vs Self-Efficacy)
The results of the study indicate that the participants’ self-efficacy improved after participation in the MOOSE vocational rehabilitation model. The results were statistically significant and indicated that as the individuals with schizophrenia’s confidence improved so did their self-efficacy. It could be argued that self-efficacy has a strong association with coping skills (Schwarzer & Jerusalem, 1995). As MOOSE particularly focuses on setting goals, introspection, motivation and coping by participating in work skills, it is expected that after stage four of the model an individual’s self-efficacy beliefs would improve. This therefore assists the individual to plan and confidently participate in work-related tasks.
The results of the current study indicated a statistically significant association between QOL and self-efficacy beliefs post intervention (i.e., after they participated in the MOOSE rehabilitation program). The above finding is justified in research conducted by Kvarme et al. (2009) where they argue that as an individual’s QOL improves so would their confidence in their ability and skills. Another study conducted by Kiaei et al. (2016) on women with breast cancer undergoing chemotherapy further reinforces a strong association between QOL and self- efficacy. In the latter study the authors argue that the research participants saw an improvement in their QOL as their self-efficacy beliefs improved, particularly as they perceived chemotherapy as an intervention to cure cancer. In a qualitative study conducted by Soeker and Pape (2019) that focused on the experiences of individuals with TBI about MOOSE on their ability to RTW, the study participants indicated that the MOOSE enhanced their QOL by enabling them to engage in work-related occupations that enabled them to sustain their families.
The results of the study indicated that although overall statistical significance after the completion of the vocational rehabilitation was not obtained, there was an increase in QOL in domain two and domain four. Possible reasons for not obtaining statistical significance with regard to QOL could relate to the fact that many of the participants may have felt that although they were capable of returning to work that they may still have experienced challenges in reintegrating back to their home environments. It could be argued that the participants felt that they may still struggle with their physical ability and independence while at home or in the workplace (Domain one and Domain three). The fact that individuals with schizophrenia still experience stigma in the workplace could explain the negative interpretation that the participants had about their environment (Domain five). Domain two relates to the individual’s perception of positive feelings, cognition, self-esteem body function and negative feelings. The latter finding may indicate that after completion of the vocational rehabilitation program (MOOSE), the participants felt more confident in participating in tasks that require the use of cognition. Furthermore, successful engagement in work-related tasks and life skills sessions may enhance positive feelings in the individual as well as aid them in managing negative feelings that may affect their overall QOL. Research has proven that those interventions that focus on life skills and the provision of ongoing coaching and support in the workplace has a positive effect on their overall well-being, hence their QOL (Tomotake, 2011; Bell et al., 2014; Dziwota et al., 2018).
Domain four relates to the individual’s relationships, support and view of sex in their lives. Similarly, the vocational rehabilitation program (MOOSE), has a strong focus on enhancing the individual’s communication skills and its link with building good relationships in the workplace and home environment. It could therefore be argued that the research participants internalized the concepts taught in the life skill sessions and work test placement phases, namely Stages 2 to 4 of the vocational rehabilitation model (MOOSE). The research participants therefore score higher in both domain two and domain four. Similar results were found in research conducted by Lowey et al. (2021) as well as Bell et al. (2014) that explored the benefits of cognitive remediation and supported employment for individuals with schizophrenia. They indicated that cognitive remediation and supportive employment greatly enhanced the quality of life of individuals with schizophrenia by facilitating community integration.
Limitations of the study
A major limitation of the current study is the fact that the study was viewed as a pilot study, hence the study utilized a small sample size. Therefore, the results of the study cannot be generalized to the larger population of individuals with schizophrenia. It is also suggested that future research should utilize a randomized control trial (RCT) with a larger sample size in order to obtain generalizable results. Another limitation was the fact that mainly male participants participated in the study.
Conclusion
The findings of the current pilot study reveal that MOOSE has the potential to be an effective model to enhance the quality of life, self-efficacy beliefs and return-to-work rate of individuals diagnosed with schizophrenia. The return-to-work rate in the current pilot study was 100% and of the 9 participants in the study, 7 returned to their previous jobs working in the same capacity in the open labor market/competitive employment, not requiring reasonable accommodation. The results of the study revealed a statistically significant effect of the intervention (i.e., MOOSE) on the self-efficacy beliefs measured using the General Self-Efficacy Scale (GSE), F(1, 8) = 6.606, p = 0.03*. The study also revealed a statistically significant relationship between self-efficacy and the quality of life (QOL) measure using the WHO-SRPB post intervention, r = 0.684, n = 9, p = 0.042*. However, the study did not reveal a statistically significant effect of the intervention (i.e., MOOSE) on the quality of life scores measured using the WHO-SRPB, F(1, 8) = 0.000, p = 1.00
Footnotes
Acknowledgments
The authors would like to thank all research participants for their involvement in the research project.
Conflict of interest
The authors certify that they have no conflict of interest to report regarding the completion of the research project.
Ethics approval
The study was approved by the Human Social Science Research Ethics Committee at the University of the Western Cape (approval number HS16/5/46).
Funding
The project was funded by the National Research Fund (NRF) of South Africa (funding number 17/2/4).
Informed consent
The research participants were provided with detailed information about the study. Their written and verbal consent was obtained before their participation in the study.
