일반의사결정유형척도의 타당화
Validation of General Decision Making Styles Scale
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초록
이 논문의 목적은 의사결정유형을 분류할 때 사용할 수 있는 일반의사결정유형(general decision making style; GDMS) 척도를 국내에서 사용가능하도록 검토하고 타당화하는 것이다. 사람들이 보여주는 판단과 선택의 기초가 되는 의사결정유형을 분류하는데 있어서 여러 나라들에서 신뢰도와 타당도를 지닌 것으로 밝혀진 GDMS 척도의 한국어판을 두 개의 연구를 통하여 검토하고 타당화하였다. 첫 번째 연구는 242명의 대학생들을 대상으로 이루어진 탐색적 연구로, 한국어판 GDMS 척도가 동일한 요인구조를 이루고 있는가를 알아보면서 구성 타당도를 검토하고, 의사결정역량과의 관련성을 살펴봄으로써 척도의 수렴타당도와 변별타당도를 살펴보았다. 연구결과는 한국어판 GDMS 척도의 신뢰도와 타당도가 있음을 보여주었다. 내적일관성계수가 높았기 때문에 신뢰도가 확인되었고, 선행연구들과 동일하게 5개의 요인이 추출되었으며, 의사결정역량 요인들과의 관련성도 유의한 것으로 나타났기 때문에, 구성타당도, 수렴타당도, 및 변별타당도를 지니는 것으로 확인되었다. 두 번째 연구는 215명의 다양한 연령층을 대상으로 공분산구조모형분석을 사용한 확인적 연구로, 축약형 GDMS 척도에 대한 타당화 연구를 실시하였다. 연구결과는 20개의 문항으로 측정되는 5개의 요인을 상정한 축약형 의사결정유형척도의 신뢰도와 타당도가 인정할 수 있음을 보여주었다. 문항수를 줄였음에도 높은 내적일관성계수를 보여주었기 때문에, 척도의 신뢰도를 확인할 수 있었고, 확인적 요인분석 모형의 적합도 지수들도 높게 나타났기 때문에 축약형 의사결정유형척도의 적합도도 확인되었다. 끝으로, 연구의 한계점과 앞으로 연구방향을 논의하였다.
Abstract
The purpose of this paper was to examine and validate of scale for classification of decision making style. In first study that was exploratory study, 242 undergraduates were asked to answer Korean version of general decision making style(GDMS) scale(Scott & Bruce, 1995) and scale of decision making competency(Nam, 2005). Each scale was consisted of Likert 5 points scale. To examine reliability and validity of Korean GDMS scale, data were analyzed by internal consistency, factor analysis, and correlation analysis. The result showed that internal consistency was high, that 5 factors were extracted and that relationships between factors of decision making style with factors of decision making competency scale were high. Also, construct validity, convergent and discriminant validity as well as reliability were accepted as recognized level. In second study that employed covariance structure model analysis as confirmatory study, 215 participants who include various ages were asked to fill out the shortened Korean version of GDMS that consisted of 20 items. Results showed that both reliability and validity of the shortened Korean version of GDMS were high. Though items were reduced, internal consistency was still high and fitness indexes of confirmatory factor analysis model were high. Finally, in addition to limitations of this study, themes and directions of future research were discussed.
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