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K-WAIS-Ⅳ에서 CHC 요인지수의 연령집단 간 비교

Age Effect of CHC Index on K-WAIS-IV

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주제분류심리과학

초록

지능과 연령의 관계는 많은 연구자들이 관심을 가지는 주제 중 하나이다. 특히, 정상 노화와 병리적인 문제로 인한 인지능력의 감소를 구분하기 위해서는 연령에 따른 지능의 변화를 확인해볼 필요가 있다. 지능에 관한 연구에서 사용되는 검사 중 하나는 Wechsler 지능검사이며, 최근 지능에 관한 이론들이 정립되면서 가장 총체적이고 심리측정적 속성을 반영한 CHC 이론을 이 검사에 적용하고자 하는 시도가 증가하고 있다. 본 연구에서는 CHC 이론을 K-WAIS-Ⅳ에 적용한 Keith 구조모델의 요인지수 및 해당 소검사들이 연령에 따라 변화되는 양상을 K-WAIS-Ⅳ 규준표본(N=1,228) 자료를 분석하여 살펴보았다. 다중회귀분석과 평균분석, 변량분석, 공변량분석 결과, Gc는 다른 인지능력에 비해 모든 연령에서 안정적일 뿐만 아니라 문화 및 교육 경험의 영향을 가장 많이 받는 인지능력이라는 것을 확인했다. Gf, Gv, Gsm, Gs는 20대 이후부터 연령이 증가함에 따라 감소하였는데, Gs에서 이러한 감소가 가장 두드러지게 나타났다. 본 연구는 K-WAIS-IV에 CHC이론을 적용하여 지능을 이해하고, 연령에 따른 인지능력의 변화를 확인하였으며, 인지능력의 발달에 대한 해석적 틀을 제공했다는데 그 의의가 있다.

Abstract

The relationship between intelligence and age was one of the topics in that many researchers were interested. In particular, the effects of age on intelligence need to be identified to distinguish a reduction in cognitive ability due to pathological problems from normal aging. One of the scales used in intelligence research is the Wechsler intelligence test. Recently, as the theories about intelligence have been established, more and more attempts have been made to apply the CHC theory that reflects psychometric properties to this scale. In this study we tried to investigated the CHC index of K-WAIS-Ⅳ by age. We used regression. average analysis, ANOVA, and ANCOVA using normative sample of K-WAIS-Ⅳ. As a result, it was confirmed that Gc is not only stable at all ages but also that is most influenced by cultural and educational experience compared to the other cognitive abilities. However, Gf, Gv, Gsm, and Gs declined in 20s, and Gs showed the greatest decrease. This study implies that the CHC theory on K-WAIS-Ⅳ was used to understand the intelligence, to confirm the change by age, and to provide an interpretive framework for the development of cognitive abilities.

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