Transferability of the Assessment of Positive Occupation 15 in elderly people with physical disabilities

Graduate School of Health Sciences, Kibi International University, Okayama, Japan
Zikei Hospital, Okayama, Japan
Department of Occupational Therapy, School of Health Sciences, Kibi International University, Okayama, Japan
DOI
10.7287/peerj.preprints.2219v1
Subject Areas
Nursing, Psychiatry and Psychology, Statistics
Keywords
APO-15, Elderly People, Physical Disabilities, Assessment, well-being, occupation, Transferability, IRT, outcome
Copyright
© 2016 Noguchi et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
Cite this article
Noguchi T, Kyougoku M. 2016. Transferability of the Assessment of Positive Occupation 15 in elderly people with physical disabilities. PeerJ Preprints 4:e2219v1

Abstract

Purpose

The present study aimed to verify the reliability and validity of the Assessment of Positive Occupation 15 (APO-15) in elderly individuals with physical disabilities in health science.

Methods

The study sample comprised 761 elderly individuals with physical disabilities residing in community dwellings, hospitals, and group homes. They completed the APO-15 and Kessler Psychological Distress Scale (K6) evaluations. We analyzed the psychometric properties of the APO-15, polyserial correlation coefficient, and average extracted variance, which included a confirmatory factor analysis (CFA), entropy, Cronbach’s α coefficient, Pearson’s product–moment correlation coefficient, item response theory (IRT), cut-off point, and latent rank values.

Results

The study outcome supported the APO-15, a 15-item, 4-factor model incorporating positive relationships, achievement, meaning, and engagement. The validity of this model was supported by various results; for example, each item score of polyserial correlation coefficient and entropy of APO-15 was the reference value was confirmed as being higher. The structural validity of APO-15 was assessed by CFA, which indicated a good model fit. Hypothesis testing revealed good values for the convergent and discriminant validity of the APO-15, and Cronbach’s α coefficient analysis revealed acceptable internal consistency. These results showed that the 4-factor structure of APO-15, which assumes has been established. Cut-off points for APO-15 of 51-point sensitivity (0.512) and specificity (0.704) yielded good results. The latent rank theory of APO-15 exhibited a good fit in all four rank values. The item reference profile suggested that an effective occupation promotes well-being.

Conclusion

The APO-15 exhibited good psychometric properties with respect to measuring positive occupations in individuals, including elderly individuals, with physical disabilities. This important tool will facilitate participation in occupations that promote daily well-being.

Author Comment

This is a submission to PeerJ for review.

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