ObjectivesZZThis study was conducted in order to determine the validity and reliability of the Korean version of the Barratt Impulsiveness Scale-11-Revised (K-BIS-11-R) in Nonclinical Adult Subjects.MethodsZZThe K-BIS-11-R was tested in non-clinical (n=270) native Korean-speakers. Internal consistency reliability was calculated using Cronbach's alpha and test-retest reliability was measured using Pearson correlations. To see external validity, we performed confirmatory factor analysis for determination of whether the three-factor model, proposed by the previous report, fit the data.ResultsZZAccording to the results, the K-BIS-11-R had an acceptable test-retest reliability and internal consistency reliability. In addition, the K-BIS-11-R total score and second-order subscale score showed significant correlation with Conners' Adult attention deficit/hyperactivity disorder Rating Scale-Korean and Buss & Durkee Hostility Inventory. In addition, no significant difference was observed between the K-BIS-11-R total score and demographic variables. Thus, the K-BIS-11-R total score was transformed to standard score.ConclusionZZK-BIS-11-R is a reliable and valid measure and has possible utility for assessment of impulsiveness in nonclinical adult subjects. Further research is needed in order to determine the cutoff score for administration of K-BIS-11-R to clinical adult subjects.J Korean Neuropsychiatr Assoc 2012;51:378-386 KEY WORDSZZ Korean version of Barratt Impulsiveness Scale-11-Revised · Reliability · Validity · Factor analysis.
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