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E-ISSN : 2733-4538
MMPI-2의 재구성임상척도(RC척도)의 타당도를 알아보기 위해 정신과에서 확진받은 환자들을 대상으로 자료를 수집하였다. 정신증적 장애로 진단된 39명, 우울장애로 진단된 36명, 불안장애로 진단된 46명으로 구성된 121명의 자료를 분석하였다. RC척도의 수렴타당도(convergent validity)를 알아보기 위하여 MMPI-2의 임상척도들과 RC척도들 간 영차상관을 분석한 결과에서, 각각의 RC척도는 그 척도가 추출된 본래의 임상척도와는 상대적으로 강한 상관을, 그리고 나머지 임상척도들과는 상대적으로 낮은 상관강도를 보였다. 변별타당도(discriminant validity)를 알아보기 위하여 임상척도들간 영차상관과 RC척도들간 영차상관을 분석하여 이를 비교하였는데, RC척도들 간의 상관관계는 임상척도들 간의 상관관계보다 대체로 낮은 경향을 보였다. 공존타당도(concurrent validity)는 간이정신진단검사(SCL-90-R)와 RC척도의 상관을 분석하여 확인하였는데, RC1과 신체화, RC2와 대인예민성 및 우울, RC4와 적대감, RC6과 편집증, RC8과 정신증이 유의한 상관관계를 보였다. 심리장애에 대한 변별력을 확인하기 위하여, RC척도의 값에서 집단간 차이가 나타나는지 알아보았다. 결과를 보면, RC1은 불안장애, 우울장애, 정신증적 장애 순서로 값이 높았고, RC2는 정신증적 장애보다 우울장애와 불안장애에서 값이 더 높았다. RC4는 우울장애, 불안장애, 정신증적 장애 순으로 값이 더 높았다. 이상의 결과는 RC척도가 적절할 타당도를 지녔음을 시사하며, 본래의 임상척도와 별도로 중요한 정보적 가치를 지님을 보여준다. 끝으로 본 연구에서 얻은 결과들과 시사점을 선행연구들과 관련지어서 논의하였다.
To obtain a empirical validity of restructured clinical scales of MMPI-2, data collected from psychiatric patients who were diagnosed as psychotic disorder(n=39), depressive disorder(n=36) and anxiety disorder (n=46). Convergent validity was explored by analyzing zero-order correlations among clinical scales and restructured clinical scales of MMPI-2. RC scale had stronger correlational relations with the original clinical scale of each own. Discriminant validity was confirmed by the results that correlational coefficients among restructured clinical scales was lower than those among clinical scales. RC scales were generally correlated stronger with conceptually relevant subscale of SCL-90-R than irrelevant subscale, which supported concurrent validity. Discriminant validity was also tested by comparing the mean of T score of RC scales from psychotic disorder, depressive disorder, and anxiety disorder. Specifically, RC1 was highest in anxiety disorder, followed by depressive disorder and psychotic disorder and RC4 was highest in depressive disorder, followed by anxiety disorder and psychotic disorder. Also, RC2 was higher in depressive disorder and anxiety disorder than psychotic disorder. These findings suggest that restructured clinical scales have satisfactory and incremental validity, in addition to informational value in evaluating patients with psychiatric disorders. Finally, the results and implications of this study discussed with the stream of previous research.
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