Validation of the Chinese version stage of recovery instrument-30 (STORI-30) for adults with severe mental illness

Abstract

<p><strong>Background:</strong> Stage of Recovery Instrument-30 (STORI-30) is grounded in a five-stage model of psychological recovery, and serves as a clinically significant measurement for assessing recovery stage of people with mental illness.</p><p><strong>Aims:</strong> To develop and validate the Chinese version STORI-30 on adults with severe mental illness. </p><p><strong>Methods:</strong> STORI-30 was translated through forward-backward translation procedures. An expert panel and ten participants were recruited to evaluate face validity, content validity and construct validity. After necessary modifications, the Chinese version STORI-30 plus other convergent and divergent scales were then administered to 113 participants for field test.</p><p><strong>Results</strong>: Face and content validity were confirmed with acceptable Content Validity Index and high inter-rater agreement from questionnaires. Exploratory factor analysis revealed a three-factor structure. An ordinal sequence was presented among the five subscales, similar to the original version. Construct validity was supported by positive correlations with other recovery and mental well-being scales, and negative correlation with self-stigma scale. The scale showed good internal consistency (Cronbach’s alpha = 0.78-0.86) and high level of test-retest reliability (Intraclass correlation coefficient = 0.96)</p><p><strong>Conclusions:</strong> The Chinese STORI-30 presents satisfactory psychometric properties in internal consistency, construct convergent and divergent validity. The three-factor structure revealed does not echo the original five-stage recovery model. Further studies exploring the underlying structure are warranted.</p><p><br></p><p>Keywords: stage of recovery; mental health recovery; recovery measurement; severe mental illness</p>