Parent-teacher report reliability on the fourth edition of the Swanson, Nolan and Pelham scale in a Brazilian clinical sample of children and adolescents with attention-deficit/hyperactivity disorder

Abstract Background Parents and teachers can be valuable sources of information for characterizing children’s ADHD-related impairments in different environments. However, evidence indicated that those categories of informants often provide conflicting responses in formal assessment scales, which may challenge diagnostic decisions regarding the condition. Objective: We aimed to investigate reliability rates between parents and teachers of children and adolescents with and without ADHD using SNAP IV. Methods 199 children and adolescents aged 6 to 17 years were evaluated for ADHD symptoms usi...