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This study examined the psychometric properties of the Brazilian-Portuguese version of the Generalized Anxiety Disorder GAD-7 questionnaire in a community sample (n = 206) of Brazilian adults. The sample was 41% female, with a mean age of 21.10 (SD = 4.49), 75.6% from colleges/universities. Results of a confi rmatory factor analysis provided support to the original unidimensional model of the GAD-7 in the Brazilian context. Analyses of Variance (ANOVA) showed that the GAD-7 scores were signifi cantly different between males and females, with females scoring higher than males. The scale demonstrated good reliability evidence; both Cronbach’s alpha coeffi cient (α = .916) and rho composite reliability coeffi cient (ρ = .909) were adequate. Item parameter analysis showed items 5 and 7 presented 1 Mailing address: Av. Dr. João Severiano Rodrigues da Cunha, 101, Uberaba, MG, Brazil 14048-900. Phone: (34) 9198-3998. E-mail: moreno.andreluiz@gmail.com, diogo.a.sousa@gmail.com, anamariafl ps@gmail. com, gmanfro@gmail.com, gsallumjr@gmail.com, silvia.koller@gmail.com, fl aviaosorio@ig.com.br and jcrippa@fmrp.usp.br Moreno, A. L., DeSousa, D. A., Souza, A. M. F. L. P., Manfro, G. G., Salum, G. A., Koller, S. H., Osório, F. L., Crippa, J. A. S. 368 the highest severity thresholds for the generalized anxiety latent trait, whereas item 1 presented the lowest ones. Our fi ndings suggest that the Brazilian-Portuguese version of the GAD-7 is suitable for assessing Generalized Anxiety Disorder symptoms in Brazilian adults in community settings.

Factor Structure, Reliability, and Item Parameters of the Brazilian-Portuguese Version of the GAD-7 Questionnaire