J Korean Acad Child Health Nurs.  2012 Apr;18(2):53-59.

Reliability and Validity of the Decision-Making-Competency Inventory (DMCI) in Korean Adolescents

• Park MJ
• Oh DN
• Ham YL
• Lim SJ
• Lim YM

Abstract

PURPOSE
This study was done to verify the reliability and validity of the Korean version of DMCI in Korean adolescents.
METHODS
A methodological study design was used with Cronbach's alpha for reliability, and an exploratory factor analysis and contrasted groups approach for construct validity. DMCI was translated into Korean and tested with a sample of 406 adolescents in Korea. The data were analyzed using Cronbach's alpha, item correlation with total, principal component factor analysis, and t-test.
RESULTS
The translated content of the DMCI was validated by nursing faculty members and translation equivalency was obtained. The Cronbach's alpha of the DMCI simplified with 18 items was .78. The factor analysis revealed three factors explaining 41.5% of total variance and the corresponding factors were self-observation (21.6%), self-judgement (11.4%), and self-confidence (8.6%). The mean score for the DMCI in the aggression group was significantly lower than the non-aggression group.
CONCLUSION
Results of this study suggest that the Korean version of DMCI can used as a reliable and valid measure to assess decision making competency in Korean adolescents.

Keyword

Adolescent; Decision-Making-Competency; Reliability; Validity

MeSH Terms

Adolescent
Aggression
Decision Making
Faculty, Nursing
Humans
Korea
Reproducibility of Results
Child Health