Original Articles
Validation of the 10-item Internalized Stigma of Mental Illness Scale: Validation of the Japanese Version
2021 Volume 30 Issue 1 Pages 21-28
Details
2021 Volume 30 Issue 1 Pages 21-28
Objectives: This study investigated the reliability and validity of the Japanese version of the 10-item Internalized Stigma of Mental Illness (ISMI-10) scale, which was designed to assess internalized stigma experienced by people with mental illness.
Methods: A survey was conducted using a self-written questionnaire for 242 people with mental disabilities who regularly attended psychiatric outpatient clinics and used social welfare facilities, and 230 people (valid response rate: 95.0%) were analyzed. The retest was performed on 155 participants, and 147 participants were analyzed.
Results: The alpha coefficient for the overall internal consistency was 0.81, and the test-retest reliability was r = .78. In terms of criterion-related validity, the Japanese version of the ISMI-10 scale presented a positive correlation between internalized stigma and depression and a negative correlation with self-esteem and empowerment. As for construct validity, we identified the two factors of “internalized stigma” and “stigma resistance.”
Conclusions: The Japanese version of the ISMI-10 scale demonstrated similar reliability and validity to the Japanese version of the ISMI-29 scale.
