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Factor structure of DSM‐III‐R personality disorders shown by self‐report questionnaire: implications for classifying and assessing personality disorders
Author(s) -
Dowson J. H.,
Berrios G. E.
Publication year - 1991
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.1991.tb03194.x
Subject(s) - personality disorders , personality , psychology , clinical psychology , cluster (spacecraft) , dsm 5 , psychiatry , social psychology , computer science , programming language
A modified version of the revised Personality Diagnostic Questionnaire (PDQ‐R), based on DSM‐III‐R personality disorders (PD), was completed by 74 psychiatric patients. A factor analysis of the scores for each of the PD (i.e. of the number of positive DSM‐III‐R criteria for each of the PD) yielded 3 factors that defined 3 PD clusters. These were similar to the 3 DSM‐III‐R PD clusters for 7 of the 11 PD categories. The 3‐group solution of a cluster analysis of the patients (using their scores of positive criteria for each of the PD) did not reflect these factors; the main discriminating variable between the 3 groups of patients was the total number of positive PD criteria. It is suggested that, for the routine assessment of patients, the most important derivative of the DSM‐III‐R classification of PD is the total score of positive PD criteria.