Validation of the Korean Version of the Clinical Assessment Interview for Negative Symptoms
- Authors
- Jang, Seon-Kyeong; Park, Seon-Cheol; Choi, Kee-Hong; Yi, Jung-Seo; Park, Joong-Kyu; Lee, Jung Suk; Lee, Seung-Hwan
- Issue Date
- 7월-2017
- Publisher
- KOREAN NEUROPSYCHIATRIC ASSOC
- Keywords
- Clinical Assessment Interview for Negative Symptoms; Negative symptoms; schizophrenia; Validity; Measurement
- Citation
- PSYCHIATRY INVESTIGATION, v.14, no.4, pp.413 - 419
- Indexed
- SCIE
SSCI
SCOPUS
KCI
- Journal Title
- PSYCHIATRY INVESTIGATION
- Volume
- 14
- Number
- 4
- Start Page
- 413
- End Page
- 419
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/83069
- DOI
- 10.4306/pi.2017.14.4.413
- ISSN
- 1738-3684
- Abstract
- Objective Clinical Assessment Interview for Negative Symptoms (CAINS) has recently been developed to improve measurement of negative symptoms in schizophrenia. We performed a multi-center study to validate the Korean version of the GAINS (GAINS-K) and explore potential cultural variation. Methods One hundred eighty schizophrenia patients diverse in demographic and illness profile were recruited from four centers in, Korea. Along with the GAINS-K, the Scale for the Assessment of Negative Symptoms (SANS), Brief Psychiatric Rating Scale (BPRS), Calgary Depression Scale for Schizophrenia (CDSS), a self-report measure of behavioral inhibition and activation (BIS/BAS) and neuro-cognitive tasks were administered to verify external validities. Results The GAINS-K showed high internal-consistency (0.92) and inter-rater reliability (0.77). Exploratory Factor Analysis replicated a two-factor structure of the original scale including motivation/pleasure and expression deficits dimensions. Korean patients tended to report lower pleasure compared to American patients in the prior study. The GAINS-K showed an adequate convergent validity with the SANS, negative symptoms of the BPRS, and BAS. A divergent validity was supported as the GAINS-K showed zero or only weak correlations with other symptoms of the BPRS, depression from the CDSS, and neurocognitive tasks. Conclusion The GAINS-K demonstrated high internal consistency and adequate external validities, and is expected to promote studies on negative symptoms in Korean patients with schizophrenia.
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