Family Accommodation Scale for Obsessive-Compulsive Disorder-Interviewer-Rated (FAS-IR), Brazilian Portuguese version: internal consistency, reliability, and exploratory factor analysis

Juliana Braga Gomes; Aristides Cordioli; Barbara Van Noppen; Michele Pato; Kate Wolitzky-Taylor; Francine Gonçalves; Elizeth Heldt

doi:10.1016/j.comppsych.2014.11.017

Family Accommodation Scale for Obsessive-Compulsive Disorder-Interviewer-Rated (FAS-IR), Brazilian Portuguese version: internal consistency, reliability, and exploratory factor analysis

Compr Psychiatry. 2015 Feb:57:155-9. doi: 10.1016/j.comppsych.2014.11.017. Epub 2014 Nov 26.

Authors

Juliana Braga Gomes¹, Aristides Cordioli², Barbara Van Noppen³, Michele Pato⁴, Kate Wolitzky-Taylor⁵, Francine Gonçalves⁶, Elizeth Heldt⁷

Affiliations

¹ Anxiety Disorders Program, Department of Psychiatry, Federal University of Rio Grande do Sul, RS, Brazil. Electronic address: ju_gomes@terra.com.br.
² Anxiety Disorders Program, Department of Psychiatry, Federal University of Rio Grande do Sul, RS, Brazil. Electronic address: acordioli@terra.com.br.
³ Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. Electronic address: vannoppe@usc.edu.
⁴ Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. Electronic address: mpato@usc.edu.
⁵ Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. Electronic address: kbtaylor@med.usc.edu.
⁶ Anxiety Disorders Program, Department of Psychiatry, Federal University of Rio Grande do Sul, RS, Brazil. Electronic address: fran_alvess@hotmail.com.
⁷ Anxiety Disorders Program, Department of Psychiatry, Federal University of Rio Grande do Sul, RS, Brazil. Electronic address: eliz.h@globo.com.

PMID: 25496698
DOI: 10.1016/j.comppsych.2014.11.017

Abstract

Objective: To examine the psychometric properties of the Brazilian Portuguese version of the Family Accommodation Scale for Obsessive-Compulsive Disorder-Interviewer-Rated (FAS-IR).

Method: A total of 114 family members of patients with obsessive-compulsive disorder (OCD) were assessed. The following analyses of the FAS-IR were carried out: internal consistency, inter-rater and test-retest reliability, and exploratory factor analysis.

Results: The Brazilian Portuguese version of the FAS-IR showed excellent inter-rater reliability (intraclass correlation coefficient [ICC]=0.94) and acceptable test-retest reliability (ICC=0.77), with no significant differences in FAS-IR scores. Factor analysis produced three factors for the scale. However, factor loadings were not well defined within each factor, and the factors did not have distinct constructs. Thus, a global analysis approach was chosen, revealing good internal consistency of the scale as a whole (Cronbach's α=0.805).

Conclusions: The Brazilian Portuguese FAS-IR showed sound psychometric properties for the evaluation of family accommodation, and is, therefore, a reliable instrument for use in research and clinical practice.

Publication types

Research Support, Non-U.S. Gov't
Validation Study

MeSH terms

Adult
Brazil
Diagnostic and Statistical Manual of Mental Disorders
Factor Analysis, Statistical
Family / psychology*
Female
Humans
Language
Male
Middle Aged
Observer Variation
Obsessive-Compulsive Disorder / diagnosis*
Obsessive-Compulsive Disorder / psychology*
Portugal
Psychometrics
Reproducibility of Results