Standardization Study of the Korean Version of Parenting Stress Index 4th Edition

In this study, the Korean-Parenting Stress Index 4th Edition(K-PSI-4) was developed by translating the Parenting Stress Index 4th Edition(PSI-4), and standardization was carried out. In order to solve the problem of awkward translation of Korean-Parenting Stress Index(K-PSI) and to produce more clear statements, all the items were re-translated by 3-step translation process, and finally completed through consultation from experts and parents. 1,333 parents of typically developing children (age range: 1 to 12 years) answered health-related questionnaire, K-PSI-4, Parental Confidence Questionnaire for preschooler or child, and 36-Item Short Form Health Survey(SF-36). After 2-4 weeks, parents who agreed in advance answered K-PSI-4 retest or K-PSI, Korean-Child Behavior Checklist for Ages 1.5-5(K-CBCL 1.5-5) or Korean-Child Behavior Checklist for Ages 6-18(K-CBCL 6-18), Patient Health Questionnaire 9(PHQ-9), and Generalized Anxiety Disorder 7(GAD-7). In order to develop the norms, K-PSI-4 score differences between sex and age of children were analyzed. Internal consistency and test-retest reliability were calculated to verify the reliability. K-PSI-4 was administered to parents of children with mental disorder and parents of typically developing children in order to verify discriminant validity. Concurrent validity was verified by conducting correlation analysis between K-PSI-4 and other measures, and by analyzing differences in parental confidence according to the level of parenting stress. Convergent validity was confirmed by correlation analysis between subscales and domains of K-PSI-4. Confirmatory factor analysis was conducted to identify the factor structure of K-PSI-4 along the structure of PSI-4. The results confirmed that K-PSI-4 was psychometrically reliable and valid tool for parenting stress. Finally, the implications and limitations of this standardization study were discussed.