The Relationship Between the Personality Inventory for the DSM-5 (PID-5) and the Psychotic Disorder in a Clinical Sample

Recent studies have successfully investigated the validity of the DSM-5 Alternative Model for Personality Disorders. In a final sample of 174 psychiatric patients, the present study examined the relationship between the Personality Inventory for the DSM-5 (PID-5) and syndromal psychosis. Results sho...

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Bibliographic Details
Published in:Assessment (Odessa, Fla.) Fla.), 2019-03, Vol.26 (2), p.315-323
Main Authors: Bastiaens, Tim, Smits, Dirk, De Hert, Marc, Thys, Erik, Bryon, Hendrik, Sweers, Kim, Teugels, Teresa, Van Looy, Joeri, Verwerft, Tim, Vanwalleghem, Dominique, Van Bouwel, Ludi, Claes, Laurence
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Diagnostic and Statistical Manual of Mental Disorders
Discriminant Analysis
Female
Humans
Male
Middle Aged
Personality Disorders - diagnosis
Personality Inventory
Psychotic Disorders - diagnosis
Young Adult
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Summary:Recent studies have successfully investigated the validity of the DSM-5 Alternative Model for Personality Disorders. In a final sample of 174 psychiatric patients, the present study examined the relationship between the Personality Inventory for the DSM-5 (PID-5) and syndromal psychosis. Results showed that patients diagnosed with versus without a psychotic disorder significantly differed on all PID-5 domains except Antagonism. Discriminant function analysis indicated that lower Detachment, lower Negative Affect, lower Disinhibition, and higher Psychoticism best discriminated patients with a psychotic disorder from patients with other psychiatric conditions. Subsequent stepwise discriminant analysis on all facet scales of the contributing PID-5 domains revealed that higher Unusual Beliefs, lower Depressivity, and lower Distractibility contributed the most to this differentiation. PID-5 Psychoticism scores showed moderate correlations with current psychotic symptoms and were not influenced by dose of antipsychotic medication. Our results support the ability of the PID-5 to discriminate between patients with and without psychotic disorder.
ISSN:1073-1911
1552-3489
DOI:10.1177/1073191117693922