Psychiatry Investig.  2018 Sep;15(9):852-860. 10.30773/pi.2018.05.04.1.

Reliability and Validity of the Korean Version of the Impaired Control Scale

• Won SD
• Han C

• KMID: 2424017
• DOI: http://doi.org/10.30773/pi.2018.05.04.1

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.

Keyword

Impaired control scale; Alcohol use disorder; Reliability; Validity

MeSH Terms

Alcohol Abstinence
Alcoholism
Anxiety
Depression
Humans
Inpatients
Reproducibility of Results*
ROC Curve
Self-Control