title: Reliability and Validity of the Korean Young Schema Questionnaire-Short Form-3 in Medical Students.
abstract: OBJECTIVE
  The Young Schema Questionnaire (YSQ) is a self-report measure of early maladaptive schemas and is currently in its third revision; it is available in both long (YSQ-L3) and short (YSQ-S3) forms. The goal of this study was to develop a Korean version of the YSQ-S3 and establish its psychometric properties in a Korean sample.
  
  
  METHODS
  A total of 542 graduate medical students completed the Korean version of the YSQ-S3 and several other psychological scales. A subsample of 308 subjects completed the Korean YSQ-S3 both before and after a 2-year test-retest interval. Correlation, regression, and confirmatory factor analyses were performed on the data.
  
  
  RESULTS
  The internal consistency of the 90-item Korean YSQ-S3 was 0.97 and that of each schema was acceptable, with Cronbach's alphas ranging from 0.59 to 0.90. The test-retest reliability ranged from 0.46 to 0.65. Every schema showed robust positive correlations with most psychological measures. The confirmatory factor analysis for the 18-factor structure originally proposed by Young, Klosko, and Weishaar (2003) showed that most goodness-of-fit statistics were indicative of a satisfactory fit.
  
  
  CONCLUSIONS
  These findings support the reliability and validity of the Korean version of the YSQ-S3.
authors.affiliation: Department of Psychiatry, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
authors.forename: Seung Jae
authors.initials: SJ
authors.lastname: Lee
authors.affiliation: Metta Institute, Seoul, Republic of Korea.
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Choi
authors.affiliation: Department of Psychiatry, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
authors.forename: Hyo Deog
authors.initials: HD
authors.lastname: Rim
authors.affiliation: Department of Psychiatry, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
authors.forename: Seung Hee
authors.initials: SH
authors.lastname: Won
authors.affiliation: Department of Psychiatry, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Republic of Korea.
authors.forename: Dong-Woo
authors.initials: DW
authors.lastname: Lee
keywords: Reliability; Schema; Short form; Validity; Young schema questionnaire