title: Item Response Theory Modeling and Categorical Regression Analyses of the Five-Factor Model Rating Form: A Study on Italian Community-Dwelling Adolescent Participants and Adult Participants.
abstract: To extend the evidence on the reliability and construct validity of the Five-Factor Model Rating Form (FFMRF) in its self-report version, two independent samples of Italian participants, which were composed of 510 adolescent high school students and 457 community-dwelling adults, respectively, were administered the FFMRF in its Italian translation. Adolescent participants were also administered the Italian translation of the Borderline Personality Features Scale for Children-11 (BPFSC-11), whereas adult participants were administered the Italian translation of the Triarchic Psychopathy Measure (TriPM). Cronbach α values were consistent with previous findings; in both samples, average interitem r values indicated acceptable internal consistency for all FFMRF scales. A multidimensional graded item response theory model indicated that the majority of FFMRF items had adequate discrimination parameters; information indices supported the reliability of the FFMRF scales. Both categorical (i.e., item-level) and scale-level regression analyses suggested that the FFMRF scores may predict a nonnegligible amount of variance in the BPFSC-11 total score in adolescent participants, and in the TriPM scale scores in adult participants.
authors.affiliation: 1 LUMSA University, Rome, Italy.|2 San Raffaele Hospital, Milan, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Fossati
authors.affiliation: 3 University of Kentucky, Lexington, KY, USA.
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Widiger
authors.affiliation: 2 San Raffaele Hospital, Milan, Italy.|4 Vita-Salute San Raffaele University, Milan, Italy.
authors.forename: Serena
authors.initials: S
authors.lastname: Borroni
authors.affiliation: 2 San Raffaele Hospital, Milan, Italy.|4 Vita-Salute San Raffaele University, Milan, Italy.
authors.forename: Cesare
authors.initials: C
authors.lastname: Maffei
authors.affiliation: 1 LUMSA University, Rome, Italy.|2 San Raffaele Hospital, Milan, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Somma
mesh_terms: D000293:Adolescent; D000328:Adult; D000987:Antisocial Personality Disorder / Q000175:diagnosis; D001883:Borderline Personality Disorder / Q000175:diagnosis; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D015233:Models, Statistical; D010555:Personality Inventory / Q000592:standards*; D011594:Psychometrics; D015203:Reproducibility of Results; D014175:Translating; D055815:Young Adult
keywords: Five-Factor Model Rating Form; adolescents; adults; item response theory; reliability; validity