title: The factorial structure of the Outcome Questionnaire-45: a study with an Italian sample.
abstract: In this article, the authors study the factorial structure of the Italian translation of the Outcome Questionnaire 45 (OQ-45) in a sample of college students (n = 522) and psychiatric outpatients (n = 301). The relative goodness of fit of six competing models of the OQ-45 was examined using confirmatory factor analysis (CFA). Specifically, the study examined the relative fit of the most frequently presented models in the literature and three alternative models. Results of the CFA provided support for the four factor bi-level solution, suggesting that the OQ-45 is a multidimensional instrument that contains one general factor and multiple unique subscale factors.
authors.affiliation: Dipartimento di Psicologia, Università degli Studi di Palermo, Italy. gianluca.lococo@virgilio.it
authors.forename: Gianluca
authors.initials: G
authors.lastname: Lo Coco
authors.forename: Marco
authors.initials: M
authors.lastname: Chiappelli
authors.forename: Luca
authors.initials: L
authors.lastname: Bensi
authors.forename: Salvatore
authors.initials: S
authors.lastname: Gullo
authors.forename: Claudia
authors.initials: C
authors.lastname: Prestano
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lambert
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis* / Q000628:therapy*; D011594:Psychometrics; D011613:Psychotherapy / Q000379:methods / Q000592:standards*; D015203:Reproducibility of Results; D013334:Students; D011795:Surveys and Questionnaires / Q000592:standards*; D016896:Treatment Outcome