韓國版 强迫尺度의 開發을 위한 豫備研究 — Modified Leyton Obsessional Inventory의 信賴度 및 妥當度 檢證 一

A Prdiminaxy Study for the Development of the Modified Leyton Obsessional Inventory-Korean Version — Evaluation o f the Reliability and Validity —

As a self-reporting scale evaluating obsessional symptom, the M odified Leyton Obsessional Inventory is being used, which was developed by Cooper(1970) and modified and complem ented by Frankel et al(1986). To develop a Korean version o f obsessional scale, the author conducted a study on the reliability and validity through translation suitable to the Korean situation o f the Modified Leyton Obsessional Inventory. Thirty-four persons diagnosed as obsessive compulsive disorder(O CD ) by means of DSM-III-R were designated as the patient group and the control group consisted of 261 medical school students. The followings are the results of the study : the correlational coefficient of the total scores in the test-retest realiability was a relatively high of 0.85(p<0.001) ; in Cronbach’s a, both showed a high internal consistency with 0.9432 for the patient group and 0.9429 for the co ntrol; in the test of the reliability using the half-split method, the reliability conefficients by even and odd num bers showed high corelations o f 0.90 and 0.84 respectively - all these showed statistical significance. The patient group showed a significantly high score, in the com parison of the total scores between the patient group, 97.62± 35.75，and the control, 50.07± 24.71(p<0.05). In the distribution of frequencies in the total scores, 70 above accounted for 66.5% in the patient group and 19.5% in the control, a significant difference. In the relationship between scores and total scores of each scale of M.M.P.I.，both the patient and the control groups showed high corelation in ‘P t’ and ‘Sc’ items. Both groups also showed significantly high corelation in ‘Si’ &#8226; ‘M a’ &#8226; ‘P a’ &#8226; ‘H s’ items. As a reslut of factor analysis by the Varimax rotation, 9 factors were extracted. The 9 factors accounted for 64.0% of common variance explained and Factor I (obsession) takes up 32.5 %. In further studies, more variegated groups and patient groups should be taken as the subjects of study for a sustained study on fixing the cutoff level to differentiate OCD and standardization as against the norm al group of people. It is also recommended that studies on the validity together with various scales to diagnose more correct OCD should be carried out