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Abstract

Background

There is a growing need for a self-assessment tool to evaluate work capacity that can be used by people with a range of disabilities, including those with cognitive and language impairments.

Objective

This study aimed to create and test a new self-rating scale, the RMIAS, for assessing work capacity in Japanese. The RMIAS is an updated version of the Mini-ICF-APP-S, designed to be suitable not only for individuals with mental disabilities but also for those with mild intellectual disabilities.

Methods

We conducted two surveys – one with 155 users of a disability employment support center and another with 145 people from the general adult population. The Mini-ICF-APP-S was revised to ensure that people with mild cognitive or language impairments could understand and respond to the questions effectively.

Resutls

Responses to the questions were well-distributed. Factor analyses showed that the RMIAS measures almost the same concepts as the Mini-ICF-APP-S. The test-retest reliability over 1–5 weeks was moderate and the RMIAS subscale scores were correlated with those of WHO-DAS 2 as expected.

Conclusion

We successfully developed the RMIAS, a revised version of the Mini-ICF-App-S, and demonstrated its reliability and validity.

Keywords

work capacity evaluation intellectual disability mental disorders self-assessment

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