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Purpose <p>This study aims to examine the psychometric properties of the Recovering Quality of Life– Japanese version (ReQoL-J) for use in the community setting.</p> Methods <p>This cross-sectional study was conducted among service users of community mental health service facilities. A series of confirmatory factor analyses (CFAs) was performed. After the best-fitting model was identified, omega indices, and intraclass correlation (ICC) were calculated to evaluate dimensionality and reliability. The correlation coefficients between the ReQoL-J scores and the other scales were calculated for testing construct validity. We also estimated the correlation coefficients between the ReQoL-J-10 and − 20.</p> Results <p>A total of 395 service users from 23 facilities in Japan participated in this study. Of these, 66 responded to the test-retest reliability. The bifactor model showed the best fit to the data: <i>χ</i><sup><i>2</i></sup>/<i>df</i> = 1.74, CFI = 0.993, RMSEA = 0.031, and SRMR = 0.038. ECV and <i>OmegaH</i> indicated unidimensionality. ICC for the Re-QoL-J-10 and − 20 were 0.700 and 0.766, respectively. The ReQoL-J-10 showed a high correlation with the ReQoL-J-20 (<i>r</i> =.95, <i>p</i> &lt;.001). The EQ-5D-5&#xa0;L, a new brief scale for subjective personal agency (SPA-5), well-being and the quality of life scale (QLS) scores were positively correlated with the ReQoL-J score. On the other hand, the patient health questionnaire-9 (PHQ-9) and the WHODAS scores were negatively correlated with the ReQoL-J score.</p> Conclusion <p>Factor structure, internal consistency, test-retest reliability, and construct validity of the ReQoL-J were confirmed. The ReQoL-J is a promising tool as a patient-reported outcome measure in mental health services for the Japanese community setting.</p>

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Psychometric properties of Japanese version of the Recovering Quality of Life (ReQoL)

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月20日

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  • Ayako Hada,
  • Takayuki Kawaguchi,
  • Kaori Usui,
  • Mai Iwanaga,
  • Sayaka Sato,
  • Sosei Yamaguchi,
  • Naoaki Kuroda,
  • Chiyo Fujii

摘要

Purpose

This study aims to examine the psychometric properties of the Recovering Quality of Life– Japanese version (ReQoL-J) for use in the community setting.

Methods

This cross-sectional study was conducted among service users of community mental health service facilities. A series of confirmatory factor analyses (CFAs) was performed. After the best-fitting model was identified, omega indices, and intraclass correlation (ICC) were calculated to evaluate dimensionality and reliability. The correlation coefficients between the ReQoL-J scores and the other scales were calculated for testing construct validity. We also estimated the correlation coefficients between the ReQoL-J-10 and − 20.

Results

A total of 395 service users from 23 facilities in Japan participated in this study. Of these, 66 responded to the test-retest reliability. The bifactor model showed the best fit to the data: χ2/df = 1.74, CFI = 0.993, RMSEA = 0.031, and SRMR = 0.038. ECV and OmegaH indicated unidimensionality. ICC for the Re-QoL-J-10 and − 20 were 0.700 and 0.766, respectively. The ReQoL-J-10 showed a high correlation with the ReQoL-J-20 (r =.95, p <.001). The EQ-5D-5 L, a new brief scale for subjective personal agency (SPA-5), well-being and the quality of life scale (QLS) scores were positively correlated with the ReQoL-J score. On the other hand, the patient health questionnaire-9 (PHQ-9) and the WHODAS scores were negatively correlated with the ReQoL-J score.

Conclusion

Factor structure, internal consistency, test-retest reliability, and construct validity of the ReQoL-J were confirmed. The ReQoL-J is a promising tool as a patient-reported outcome measure in mental health services for the Japanese community setting.