Validation of the Korean Version of the Prodromal Questionnaire-Brief Version in Non-Help-Seeking Individuals
- Author:
Young Eun JANG
1
;
Tae Young LEE
;
Ji Won HUR
;
Jun Soo KWON
Author Information
- Publication Type:Original Article
- From:Psychiatry Investigation 2019;16(2):109-114
- CountryRepublic of Korea
- Language:English
-
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.
