The Psychometric Properties of a Malay Language Version of the Internalized Stigma of Mental Illness (ISMI) Scale (ISMI-BM)

Naemah binti Abdul Rahim, Aili binti Hanim Hashim, Ng Chong Guan, Chong Siew Koon


Introduction: This study examined the psychometric properties of a Malay translated version of Internalized Stigma of Mental Illness scale (ISMI-BM).

Methods: 120 participants attending outpatient psychiatric clinic in University Malaya Medical Centre (UMMC) were recruited in this study. The participants have completed socio-demographic questionnaire, ISMI Scale (both English and Malay version), Discrimination and Stigma scale (DISC-12) and Rosernberg Self-Esteem scale. Prior, ethical approval was acquired from the UMMC Medical Ethics Committee. The internal consistency of the Malay version of ISMI was assessed using the Cronbach’s alpha coefficient. Spearman correlation (r) was used to examine the parallel reliability between Malay version of ISMI with the original version of ISMI; and the concurrent validity between Malay version of ISMI with DISC-12 and Rosenberg Self-esteem scale. Statistical analysis was performed using Statistical package for Social Science (SPSS) version 22.0 software.

Results: Our result showed that Malay version of ISMI scale has impressive internal consistency with high Cronbach alpha of 0.91. The study also demonstrated good parallel form reliability. ISMI-BM also significantly correlated with factors of DISC-12; DISC Overcoming Stigma (r = -0.32, p<0.01) and DISC Positive Treatment (r= -0.21, p<0.05) and Rosernberg Self-Esteem scale (r=0.50, p <0.01).

Conclusion: The ISMI-BM demonstrated good validity and reliability that generally justified its use in routine clinical practice in Malaysia.

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Internalized Stigma, Validity; Reliability; Malay; Mental Illness Psychometic; Validation

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