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KMID : 1118520200170040306
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Psychiatry Investigation
2020 Volume.17 No. 4 p.306 ~ p.311
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Validation of the Korean Version of the 15-Item Community Assessment of Psychic Experiences in a College Population
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Kim Sung-Wan
Kim Jae-Kyeong
Han Ji-Hun
Jhon Min
Kim Ju-Wan
Lee Ju-Yeon
Kim Jae-Min
Na Hyun-Ju
Kang Young-Shin
Chung Young-Chul
Yoon Jin-Sang
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Abstract
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Objective: To investigate the reliability and validity of the Korean version of the Community Assessment of Psychic Experiences-15 item positive scale (CAPE-15) in college students.
Methods: This study had two stages: initial screening with self-report questionnaires including the CAPE-15, and semi-structured interviews to investigate the instrument’s diagnostic validity. The initial screening involved 1,749 college students. The modified Korean version of Prodromal Questionnaire-16 item (mKPQ-16) was also administered. The criteria for ultra-high risk (UHR) of psychosis in the Comprehensive Assessment of At-Risk Mental States (CAARMS) were the gold standard for diagnosis.
Results: Twelve of the interviewed subjects met the CAARMS criteria for UHR of psychosis. The area under the receiver operating characteristic curve was highest (0.936) for the CAPE-15 distress score (p<0.001). The use of 6 as the cutoff for the CAPE-15 distress score resulted in the best balance of sensitivity (91.7%) and specificity (85.2%), with a favorable positive predictive value of 32.4%. The coefficients of correlation between the CAPE-15 and mKPQ-16 were significant.
Conclusion: The Korean version of the CAPE-15 is a good instrument for screening for psychosis risk in collegiate settings. The validation of this scale could contribute to the early identification of psychosis in the Korean community.
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KEYWORD
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Schizophrenia, Ultra-high risk, Attenuated psychosis syndrome, Prodrome, CAPE-15
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