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This article discusses the historical underpinnings of psychiatric classification and examines empirical evidence relevant to (a) whether personality disorders are distinct from each other and from normal personality and (b) whether personality disorders should be classified separately from other mental disorders. At the phenotypic level, research evidence(More)
Categorical and dimensional models for classifying personality disorders were evaluated by comparing the structure of personality pathology in a clinical sample (n = 158) with the structure in a general population sample (n = 274). Subjects completed 100 personality scales. Separate factor analyses revealed similar structures in the 2 samples. An underlying(More)
This study describes a psychometric approach to refining descriptions of antisocial, borderline, histrionic, and narcissistic personality disorders in an attempt to achieve greater distinctiveness. We developed descriptions of each diagnosis from content analysis of the literature. Psychiatrists' ratings were used to organize the features of each diagnosis(More)
The reliability of DSM-III-R diagnoses of personality disorders is poor and their validity has yet to be established. There is little evidence that the features of personality pathology cluster into these diagnostic entities. For these reasons, it is important to explore alternative ways of classifying personality disorders. In this preliminary study,(More)
This study examined patients with eating disorders on personality pathology using a dimensional method. Female subjects who met DSM-IV diagnostic criteria for eating disorder (n = 136) were evaluated and compared to an age-controlled general population sample (n = 68). We assessed 18 features of personality disorder with the Dimensional Assessment of(More)
This study evaluated the extent to which the features of personality disorders are organized into the 11 diagnoses proposed by DSM-III-R. The traits composing personality disorder diagnoses were identified in earlier studies. Seventy-nine traits were required to represent personality diagnoses. Self-report scales were developed to measure each trait. The(More)
The authors adopt a construct validity approach to examine the structural validity of diagnoses of paranoid, schizoid, and schizotypal personality disorders. Systematic descriptions of these diagnoses were developed based on features identified from the literature that were organized using the clinicians' ratings. Each diagnosis was described in terms of a(More)