The SNAP-IV questionnaire was developed to evaluate symptoms of attention-deficit/hyperactivity disorder in children and adolescents. It can be fulfilled by parents or teachers and consists of the symptoms listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) for attention-deficit/hyperactivity disorder (criterion A) and oppositional-defiant disorder. OBJECTIVES: To develop a version of the SNAP-IV used in the Multimodal Treatment Assessment Study to be applied in Brazil. METHODS: Translation, back-translation, evaluation of semantic equivalence, debriefing and definition of a final version was the methodology used to reach an adequate version. RESULTS: After translation and back-translation, 20 items were considered similar, six items were considered approximate in meaning, and five items were considered different from the original instrument in English. The final version was chosen considering many aspects, including similarity to the original version, ease of understanding and level of equivalence of the terms in different regions of the country. CONCLUSION: The Portuguese version of the SNAP-IV will allow the screening of attention-deficit/hyperactivity disorder and oppositional-defiant disorder in a similar manner to the original version.
Attention-deficit; questionnaires; translation (process); translation (product)