The White Bear Suppression Inventory (WBSI): Psychometric properties of the Portuguese (Portugal) version

Abstract

The White Bear Suppression Inventory (WBSI) was developed tomeasure the tendency to suppress unwanted negative thought. With the aim to study its internal structure and psychometrics properties, this inventory was applied with other measures to a sample of 558 participants from the general non-clinical Portuguese population. We performed confirmatory factorial analyses (AFC) to test five models of unidimensional, bi-dimensional and three-dimensional structures. The results yielded the existence of one single factor with adequate levels of internal consistency and temporal stability (a= .88, CCI = .61 [IC95% = .31-.78]).The WBSI was associated with psychological and psychopathological measures showing adequate levels of convergent validity. We present the normative data for the analyzed sample. In conclusion, the Portuguese version of the WBSI is an adequate instrument to be used in Portugal.