This study presents the validation of the University of Rhode Island Change Assessment (URICA) for illicit psychoactive substances users in Brasil. The sample was of 214 persons of the masculine (n=194) and feminine sex (n=20) between 13 and 44 years old (M=22,93; DP=7,94). The collection happened in Porto Alegre, in ambulatories for treatment of the chemical dependence (n=89), as much as in internment places (n=125). The statistical analysis had evidenced a good internal consistency of the 24 itens scale (a=0,657). From statistical analysis was constructed the score T, carrying through the Brazilian standardize of URICA for illicit drugs, wich presented good psicometric results, being able to be used in studies that investigate motivation for behavior-problem change.
URICA; Illicit drugs; Brazilian version
