title: Diagnostic Agreement Between Clinicians and Clients: The Convergent and Discriminant Validity of the SWAP-200 and MCMI-III Personality Disorder Scales.
abstract: A particularly controversial aspect in the field of personality assessment is the use of self-report measures, versus clinicians' evaluations, for diagnosing personality disorder (PD). No studies have systematically documented the agreement between these sources for the entire array of DSM-5 PDs using comprehensive measures and experienced clinicians' judgments. The present work fills this gap by indexing the agreement between patients' self-descriptions and clinicians' judgments, relying on standardized and thorough PD instruments. The Shedler-Westen Assessment Procedure-200 (SWAP-200; Westen & Shedler, 1999a, 1999b) and the Millon Clinical Multiaxial Inventory-III (Millon, Davis, & Millon, 1997) were both completed in a clinical series of 56 adult outpatients. Analyses highlighted moderate correlations between the two measures for the 10 DSM-5 PDs (Mdn = .35). Agreement was highest for psychological features that are more easily observable by the clinicians. Furthermore, results revealed problematic discriminant validity between the two instruments.
authors.affiliation: Department of Psychology, Milan Bicocca University, Milan, Italy.
authors.forename: Emanuela S
authors.initials: ES
authors.lastname: Gritti
authors.affiliation: Department of Psychological Sciences, Purdue University, West Lafayette, Indiana.
authors.forename: Douglas B
authors.initials: DB
authors.lastname: Samuel
authors.affiliation: Department of Psychology, Milan Bicocca University, Milan, Italy.|Associazione per la Ricerca in Psicologia Clinica - A.R.P., Milan, Italy.
authors.forename: Margherita
authors.initials: M
authors.lastname: Lang
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008370:Manuals as Topic; D008875:Middle Aged; D010552:Personality Assessment; D010554:Personality Disorders / Q000145:classification / Q000175:diagnosis* / Q000523:psychology*; D010555:Personality Inventory / Q000592:standards*; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics / Q000379:methods* / Q000592:standards; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires