Early maladaptive schemas of personality disorder subtypes

This investigation attempted to examine the cognitive schemas of five distinct clusters that emerged from a cluster analysis of the personality disorder scales of the Millon Clinical Multiaxial Inventory-II (Millon, 1987). Specifically, the degree to which early maladaptive schemas, as measured by the Cognitive Schema Questionnaire-Short Form (Young, 1994), could correctly identify empirically derived patterns of personality disorders was examined. Between-cluster differences centered on five personality components and five schemas. Discriminant analyses revealed two significant functions composed of cognitive schemas, which correctly identified 61.2% of the entire sample in terms of cluster group membership. The total proportion of variance in the two significant functions associated with cluster group differences was 76.8%. Findings are discussed in relation to the domain theory of personality disorders posited by Millon and Davis (1996).

Personality and affect characteristics of outpatients with depression

This investigation was designed to examine the relationship between depression severity and personality disorders measured by the Millon Clinical Multiaxial Inventory-II (Millon, 1987) and affectivity measured by the Positive Affectivity/Negative Affectivity Schedule (Watson, Clark, & Tellegen, 1988). Discriminant analyses were employed to identify the personality and affective dimensions that maximally discriminate between 4 different levels of depressive severity. Differences between the 4 levels of depressive severity are suggestive of unique patterns of personality characteristics. Discriminant analysis showed that 74.8% of the cases were correctly classified by a single linear discriminant function, and that 61% of the variance in depression severity was accounted for by selected personality and affect variables. Results extend current conceptualizations of comorbidity and are discussed with respect to depression severity.