Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness

Objectives The Assessment of Positive Occupation 15 (APO-15) is a scale initially developed to evaluate participation in well-being-promoting occupations among individuals with mental illness. This study examines the psychometric properties of the Japanese version of the APO-15 for individuals with...

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Main Authors: Takuya Noguchi, Makoto Kyougoku
Format: Article
Language:English
Published: SAGE Publishing 2025-06-01
Series:Hong Kong Journal of Occupational Therapy
Online Access:https://doi.org/10.1177/15691861241295339
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author Takuya Noguchi
Makoto Kyougoku
author_facet Takuya Noguchi
Makoto Kyougoku
author_sort Takuya Noguchi
collection DOAJ
description Objectives The Assessment of Positive Occupation 15 (APO-15) is a scale initially developed to evaluate participation in well-being-promoting occupations among individuals with mental illness. This study examines the psychometric properties of the Japanese version of the APO-15 for individuals with physical illness, focusing on its validity, reliability, and interpretability. Methods We evaluated the psychometric properties of the APO-15 using a sample of 1,259 individuals with physical illness living at home, in hospitals, and in nursing homes. Validity was evaluated using confirmatory factor analysis (CFA) to confirm the factor structure, and concurrent validity was examined by correlating APO-15 scores with measures of happiness and psychological distress. Reliability was assessed by internal consistency analysis using Cronbach's alpha, and item difficulty was analyzed using the Rasch Rating Scale Model (RSM). Interpretability was established through a T-scale-based five-level criterion for client status. Results The APO-15 showed strong psychometric properties. CFA indicated a good fit for the factor structure (RMSEA= 0.100, CFI= 0.944, TLI= 0.930). Internal consistency was high, with a Cronbach’s alpha of 0.914. Item difficulty analysis revealed a bias towards easier items, consistent with previous findings in mental illness populations. The T-scale-based five-level criterion effectively classified client status, though significance was noted between most levels except levels 1 and 2. Conclusion The Japanese version of the APO-15 is a reliable and valid tool for assessing occupational participation and promoting well-being among individuals with physical illness. It provides a robust framework for occupational therapists to support clients' well-being through targeted occupational engagement.
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spelling doaj-art-d38e3da474e74a6b80f8b37d699a8c842025-08-20T03:53:57ZengSAGE PublishingHong Kong Journal of Occupational Therapy1876-43982025-06-013810.1177/15691861241295339Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illnessTakuya NoguchiMakoto KyougokuObjectives The Assessment of Positive Occupation 15 (APO-15) is a scale initially developed to evaluate participation in well-being-promoting occupations among individuals with mental illness. This study examines the psychometric properties of the Japanese version of the APO-15 for individuals with physical illness, focusing on its validity, reliability, and interpretability. Methods We evaluated the psychometric properties of the APO-15 using a sample of 1,259 individuals with physical illness living at home, in hospitals, and in nursing homes. Validity was evaluated using confirmatory factor analysis (CFA) to confirm the factor structure, and concurrent validity was examined by correlating APO-15 scores with measures of happiness and psychological distress. Reliability was assessed by internal consistency analysis using Cronbach's alpha, and item difficulty was analyzed using the Rasch Rating Scale Model (RSM). Interpretability was established through a T-scale-based five-level criterion for client status. Results The APO-15 showed strong psychometric properties. CFA indicated a good fit for the factor structure (RMSEA= 0.100, CFI= 0.944, TLI= 0.930). Internal consistency was high, with a Cronbach’s alpha of 0.914. Item difficulty analysis revealed a bias towards easier items, consistent with previous findings in mental illness populations. The T-scale-based five-level criterion effectively classified client status, though significance was noted between most levels except levels 1 and 2. Conclusion The Japanese version of the APO-15 is a reliable and valid tool for assessing occupational participation and promoting well-being among individuals with physical illness. It provides a robust framework for occupational therapists to support clients' well-being through targeted occupational engagement.https://doi.org/10.1177/15691861241295339
spellingShingle Takuya Noguchi
Makoto Kyougoku
Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
Hong Kong Journal of Occupational Therapy
title Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
title_full Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
title_fullStr Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
title_full_unstemmed Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
title_short Psychometric properties of the Assessment of Positive Occupation 15 for individuals with physical illness
title_sort psychometric properties of the assessment of positive occupation 15 for individuals with physical illness
url https://doi.org/10.1177/15691861241295339
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