E-ISSN : 2733-4538
This study was attempted to explore the relation between MMPI profile types by cluster analysis and defense mechanisms in University students. By the cluster analysis of MMPI subscales, 1) Normal Group I(T score ≤ 47) 2) Normal Group II(48 ≤ T score ≤ 55) 3) Neurotic Group 4) Psychotic Group were extracted. There were statistically significant differences between groups in using defense mechanisms. The results were as follows. Normal group I and II used more humor, sublimation, rationalization, anticipation than neurotic and psychotic group. Neurotic group used more projection, passive-aggressive behavior, dissociation, somatization than two normal groups. Psychotic group used more displacement, dissociation than the other three groups. Psychotic group used more passive-aggressive behavior, projection, somatization, acting out, regression than normal groups. In summary, while normal groups used mature defense mechanisms, neurotic and psychotic groups used immature mechanisms.