Assessing stable validity and reliability of the Japanese version of the individualized supported employment fidelity scale: A replication

Yamaguchi, Sosei; Sato, Sayaka; Ojio, Yasutaka; Shiozawa, Takuma; Matsunaga, Asami; Taneda, Ayano; Sawada, Utako; Yoshida, Koji; Fujii, Chiyo

doi:10.1002/npr2.12172

Cited by 6 publications

(7 citation statements)

References 24 publications

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“…This study demonstrated an association between program fidelity and several vocational outcomes, confirming the results of past program-level fidelity research on the IPS and individualized supported employment models (Bond et al, 2012 ; de Winter et al, 2020 ; Lockett et al, 2016 ; Sasaki et al, 2018 ; Yamaguchi et al, 2021 ). Since this study examined individual-level vocational outcomes after adjusting for several covariates, it augments existing evidence.…”

Section: Discussionsupporting

confidence: 86%

“…The JiSEF score was assessed by two trained reviewers, both of whom visited each agency. Previous studies have confirmed that the JiSEF demonstrates good concurrent validity with employment outcomes, good convergent validity with the IPS-25, and high inter-rater reliability (Sasaki et al, 2018;Yamaguchi et al, 2020Yamaguchi et al, , 2021. To identify the low-and high-fidelity groups, we computed the mean of the JiSEF scores in 2016 and 2018 for each program.…”

Section: Participating Programs and Program Fidelitymentioning

confidence: 99%

“…Despite these changes, the JiSEF score was associated with program-level employment rates and service content (Sasaki et al, 2018 ; Yamaguchi et al, 2020 ). In addition, the JiSEF score and IPS-25 score were significantly correlated (r = 0.760) (Yamaguchi et al, 2021 ). This may indicate that the Japanese individualized supported employment model is not significantly different from the original IPS model.…”

Section: Introductionmentioning

confidence: 99%

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Predictive Association of Low- and High-Fidelity Supported Employment Programs with Multiple Outcomes in a Real-World Setting: A Prospective Longitudinal Multi-site Study

Yamaguchi

Sato

Shiozawa

et al. 2021

Adm Policy Ment Health

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Purpose The individual placement and support (IPS) model of supported employment is a leading evidence-based practice in community mental health services. In Japan, individualized supported employment that is highly informed by the philosophy of the IPS model has been implemented. While there is a body of evidence demonstrating the association between program fidelity and the proportion of participants gaining competitive employment, the association between fidelity and a wider set of vocational and individual outcomes has received limited investigation. This study aimed to assess whether high-fidelity individualized supported employment programs were superior to low-fidelity programs in terms of vocational outcomes, preferred job acquisition, and patient-reported outcome measures (PROMs). Methods A prospective longitudinal study with 24-month follow-up analyzed 16 individualized supported employment programs. The Japanese version of the individualized Supported Employment Fidelity scale (JiSEF) was used to assess the structural quality of supported employment programs (scores: low-fidelity program, ≤ 90; high-fidelity program, ≥ 91). Job acquisition, work tenure, work earnings, job preference matching (e.g., occupation type, salary, and illness disclosure), and PROMs such as the INSPIRE and WHO-Five Well-being index were compared between groups. Results There were 75 and 127 participants in the low-fidelity group (k = 6) and high-fidelity group (k = 10), respectively. The high-fidelity group demonstrated better vocational outcomes than the low-fidelity group, i.e., higher competitive job acquisition (71.7% versus 38.7%, respectively, adjusted odds ratio (aOR) = 3.6, p = 0.002), longer work tenure (adjusted mean difference = 140.8, p < 0.001), and better match for illness disclosure preference (92.6% versus 68.0%, respectively, aOR = 5.9, p = 0.003). However, we found no differences between groups in other preference matches or PROM outcomes. Conclusion High-fidelity individualized supported employment programs resulted in good vocational outcomes in a real-world setting. However, enhancing service quality to increase desired job acquisition and improve PROMs will be important in the future. Clinical Trial Registration UMIN000025648

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Section: Discussionsupporting

confidence: 86%

Section: Participating Programs and Program Fidelitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Predictive Association of Low- and High-Fidelity Supported Employment Programs with Multiple Outcomes in a Real-World Setting: A Prospective Longitudinal Multi-site Study

Yamaguchi

Sato

Shiozawa

et al. 2021

Adm Policy Ment Health

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“…Since some criteria of IPS-25 are difficult or inappropriate to implement under the Japanese mental health and welfare system, JiSEF was developed by modifying IPS-25 to fit the Japanese system while adhering to the principles of IPS. JiSEF showed a good concurrent validity with employment outcomes, a sound convergent validity with IPS-25, and a high interrater reliability (Sasaki et al, 2018; Yamaguchi et al, 2020; Yamaguchi, Sato, Ojio, et al, 2021). The differences from IPS-25 are reported elsewhere (Sasaki et al, 2018).…”

Section: Methodsmentioning

confidence: 89%

“…The averages of JiSEF scores were 91.4 (range = 77–108) in 2016 and 92.0 (range = 68–115) in 2018. Considering the JiSEF cutoff score of 91 (Yamaguchi et al, 2018), the registered programs showed fair fidelity overall. Since some criteria of IPS-25 are difficult or inappropriate to implement under the Japanese mental health and welfare system, JiSEF was developed by modifying IPS-25 to fit the Japanese system while adhering to the principles of IPS.…”

Section: Methodsmentioning

confidence: 99%

Influence of multi-aspect job preference matching on job tenure for people with mental disorders in supported employment programs in Japan.

Igarashi¹,

Yamaguchi²,

Sato³

et al. 2023

Psychiatric Rehabilitation Journal

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Objective: This study examined the association between job tenure and job preference matching for five job preference domains for people with mental disorders enrolled in Individual Placement and Support (IPS) programs in Japan. The domains include occupation type, monthly income, weekly work hours, commute time, and illness disclosure. Methods: We conducted secondary analysis of participants who obtained employment in a longitudinal study during the 24-month follow-up period at 16 agencies routinely providing IPS programs. We included 112 participants who expressed job preferences and were employed at least once. A total of 130 employment cases were analyzed. Matches in the five domains were determined using participants' job preferences and employment information. The Match Level (0-5) indicates the number of domains that match the participant's job preferences. Job tenure (weeks worked) was compared between the matched and unmatched groups in each domain and between each match levels using linear regression mixed-effects models. Results: A match for a given domain did not show a significant relationship with job tenure, whereas Match Levels 3 (B = 29.6, 95% CI [10.8, 48.4], p = .003) and 4 (B = 37.0, 95% CI [17.1, 56.9], p < .001) had a significantly longer tenure than those with Match Level 1. Conclusions and Implications for Practice: A higher match level may be related to a longer job tenure. The results suggest that employment specialists should prioritize clients' preferences in job searches. Further replication studies in other settings and countries should be conducted to verify the findings in this study. Impact and ImplicationsThis study showed that jobs with a higher preference match level last longer for people with mental disorders enrolled in Individual Placement and Support programs. The results suggest that employment specialists should assess multiple domains of job preferences for clients and help find a job that matches their preferences as closely as possible.

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