Reliability and Validity of the Korean Version of the Impaired Control Scale.
- Author:
Sung Doo WON
1
;
Changwoo HAN
Author Information
- Publication Type:Original Article
- Keywords: Impaired control scale; Alcohol use disorder; Reliability; Validity
- MeSH: Alcohol Abstinence; Alcoholism; Anxiety; Depression; Humans; Inpatients; Reproducibility of Results*; ROC Curve; Self-Control
- From:Psychiatry Investigation 2018;15(9):852-860
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVE: The aim of this study was to examine the reliability and validity of the Korean version of the Impaired Control Scale (K-ICS), a scale to screen patients with alcohol use disorder. METHODS: Participants were 173 inpatients with alcohol use disorder (AUD), and 174 normal controls (NC). Both AUD and NC groups completed the K-ICS as well as the Alcohol Dependence Scale (ADS), the Alcohol Abstinence Self-Efficacy Scale (AASES), the Brief Self-Control Scale (BSCS), and the Hospital Anxiety and Depression Scale (HAD). RESULTS: The internal consistencies of K-ICS were good in both AUD and NC. A good convergent validity was clearly shown by significant correlations with the ADS and the AASES, respectively. But the K-ICS had no or weak correlations with the BSCS and the HAD. The ROC curve analyses indicated that the optimal cut-off points of failed control (FC) and predicted control (PC) were estimated as >15 and >13, respectively. Hierarchical multiple regression analysis suggested that FC is a robust predictor of the severity of AUD. CONCLUSION: The K-ICS, especially FC subscale of it appears to be a valid and reliable measure of impaired control among both clinical and non-clinical sample.
