OBJECTIVES: The objective of this study was to translate, make transcultural adaptation and assess the semantic, idiomatic and literal equivalence of the Barratt Impulsiveness Scale (BIS-11). METHODS:This scale assesses the presence of impulsive manifestations from the theoretical model proposed by Ernst Barratt. Firstly, the BIS-11 original version in English was translated to Portuguese by six bilingual researches. After this, was made the back-translation to English by a translator that was born in United States. Then, the three versions (original, translated and back-translated) were assessed by a specialists committee which made and analyze and comments about the process and then we reach the final translated version of BIS-11. The original and translated version of BIS-11 was applied in two samples from general population with proficiency both in English and Portuguese. This method was adopted to assess the literal, semantic e idiomatic equivalence of these versions by mean of correlation analyses. CONCLUSION: The final results of quantitative analyses show that the final version of BIS-11 is satisfactory.
Impulsivity; psychometry; scales; personality
