title: The Personality Inventory for DSM-5 Brief Form: Evidence for Reliability and Construct Validity in a Sample of Community-Dwelling Italian Adolescents.
abstract: To assess the reliability and construct validity of the Personality Inventory for DSM-5 Brief Form (PID-5-BF) among adolescents, 877 Italian high school students were administered the PID-5-BF. Participants were administered also the Measure of Disordered Personality Functioning (MDPF) as a criterion measure. In the full sample, Cronbach's alpha values for the PID-5-BF scales ranged from .59 (Detachment) to .77 (Psychoticism); in addition, all PID-5-BF scales showed mean interitem correlation values in the .22 to .40 range. Cronbach's alpha values for the PID-5-BF total score was .83 (mean interitem r = .16). Although 2-month test-retest reliability could be assessed only in a small ( n = 42) subsample of participants, all PID-5-BF scale scores showed adequate temporal stability, as indexed by intraclass r values ranging from .78 (Negative Affectivity) to .97 (Detachment), all ps <.001. Exploratory structural equation modeling analyses provided at least moderate support for the a priori model of PID-5-BF items. Multiple regression analyses showed that PID-5-BF scales predicted a nonnegligible amount of variance in MDPF Non-Cooperativeness, adjusted R2= .17, p < .001, and Non-Coping scales, adjusted R2= .32, p < .001. Similarly, the PID-5-BF total score was a significant predictor of both MDPF Non-Coping, and Non-Cooperativeness scales.
authors.affiliation: 1 LUMSA University, Rome, Italy.|2 San Raffaele Hospital, Milan, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Fossati
authors.affiliation: 1 LUMSA University, Rome, Italy.|2 San Raffaele Hospital, Milan, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Somma
authors.affiliation: 2 San Raffaele Hospital, Milan, Italy.|3 Vita-Salute San Raffaele University, Milan, Italy.
authors.forename: Serena
authors.initials: S
authors.lastname: Borroni
authors.affiliation: 4 University of Iowa, Iowa City, IA, USA.
authors.forename: Kristian E
authors.initials: KE
authors.lastname: Markon
authors.affiliation: 5 University of Minnesota, Minneapolis, MN, USA.
authors.forename: Robert F
authors.initials: RF
authors.lastname: Krueger
mesh_terms: D000275:Adjustment Disorders / Q000175:diagnosis; D000293:Adolescent; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D010554:Personality Disorders / Q000175:diagnosis*; D010555:Personality Inventory; D011594:Psychometrics; D012044:Regression Analysis; D015203:Reproducibility of Results
keywords: Personality Inventory for DSM-5 Brief Form; adolescence; reliability; validity