Validation of the Korean Version of the Prodromal Questionnaire-Brief Version in Non-Help-Seeking Individuals
- Authors
- Jang, Young Eun; Lee, Tae Young; Hur, Ji-Won; Kwon, Jun Soo
- Issue Date
- 2월-2019
- Publisher
- KOREAN NEUROPSYCHIATRIC ASSOC
- Keywords
- Schizophrenia; Early psychosis; Clinical high risk; Ultra high risk; Screening; PQ-B
- Citation
- PSYCHIATRY INVESTIGATION, v.16, no.2, pp.109 - 114
- Indexed
- SCIE
SSCI
SCOPUS
KCI
- Journal Title
- PSYCHIATRY INVESTIGATION
- Volume
- 16
- Number
- 2
- Start Page
- 109
- End Page
- 114
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/67887
- DOI
- 10.30773/pi.2018.10.23
- ISSN
- 1738-3684
- Abstract
- Objective In this study, we examined the reliability and validity of the Korean version of the Prodromal Questionnaire-Brief (PQ-B), a self-report screening instrument for clinical high risk for psychosis (CHR). Methods A total of 3,400 middle, high school and college students participated, and 261 subjects with a PQ-B total score >= 3 completed both the PQ-B and the Structured Interview for Prodromal Syndromes (SIPS). Receiver operating characteristic (ROC) curves were used to examine the psychometric properties of the PQ-B. Results A cut off of 7 for the PQ-B total score and a cut-off of 22 for the PQ-B distress score showed the best balance of sensitivity (72.2%, 77.8%) and specificity (71.4%, 75.0%). Conclusion The Korean version of the PQ-B showed good reliability and validity for predicting prodromal risk symptoms in the community population.
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