Development of a Japanese Version of the Work-related Acceptance and Action Questionnaire and Examination of Its Reliability and Validity

Abstract

The purpose of this study was to develop a Japanese version of the Work-related Acceptance and Action Questionnaire (WAAQ) and to examine its reliability and validity. In Study 1, we created a Japanese version of the WAAQ, examined its structural validity and internal consistency, and conducted hypothesis testing (convergent validity) using 180 workers. The Japanese version of the WAAQ was found to have high internal consistency, partial structural validity, and convergent validity. In Study 2, we examined the structural validity of the questionnaire and conducted hypothesis testing (convergent validity and comparison between subgroups) using 2,071 workers, of which 320 were involved in verifying test-retest reliability and measurement error. The results showed that the Japanese version of the WAAQ possessed high convergent validity and adequate structural validity, and displayed small effects in difference between subgroups in terms of age group, type of business, job type and measurement error. However, test-retest reliability remained an issue.