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Reliability and Validity of a Japanese Version of the Markova-Berrios Insight Scale Yoshimi OHMORI 1 , Chizuru MORI 1 1Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan Keyword: Schizophrenia , Insight , Scale , Reliability , Validity pp.1167-1178
Published Date 2011/12/15
DOI https://doi.org/10.11477/mf.1405102045
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 Introduction Evaluating insight of psychiatric patients is a problem. Many researchers have published tools for evaluation of insight;however, these tools cosider different aspects of insight. In 1992, Markova and Berrios published an insight scale and they restandardized their scale in 2003. The scale focuses on patients' awareness and expression of subjective experiences and can be used by medical professionals to share and understand the patients' subjective experiences. Aim:This study reports on the reliability and validity of a Japanese version of this scale. Method:We used the Japanese scale to examine the responses of 63 schizophrenic inpatients. Further we evaluated the validity of the scale with 18 medical professionals. Result:Cronbach's alpha coefficient was 0.84 and the interclass correlation was 0.90. Although some items of the scale showed low validity when examined by medical professionals with long experience of working in psychiatric hospitals, factor analysis identified 6 items that suggested subjective changes in the self and in interactive relationships between the self and the environment. Not only was the scale significantly correlated with the Japanese version of the Schedule for the Assessment of Insight and g12 “Luck of judgment and insight,” but also some the scale's items were related to the Positive and Negative Syndrome Scale. Discussion:Our findings suggest that the Japanese scale measures symptom-related items as well as patients' awareness and expression of subjective experiences. Thus, we conclude that the Japanese version of the insight scale proposed by Markova and Berrios has sufficient reliability and validity. Since subjective experiences are affected by the severity of symptoms, the Markova and Berrios insight scale can be used by medical professionals in Japan for measuring the changes in patients' subjective experiences during different stages of schizophrenia. Since this was a cross-sectional study, further examination of the Japanese version of the Markova and Berrios insight scale should be perfomed .


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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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