Translation and cross-cultural adaptation of the Motor Behavior Checklist (MBC) into Brazilian Portuguese.

Introduction: There are only a few instruments available to assess behavioral problems in school-age children based on reports of physical education teachers. The Motor Behavior Checklist (MBC) was designed to be completed by this professional in free play-situations or during physical education classes to rate students' motor-related behavior using 5-point Likert scales. The MBC comprises 59 items distributed into two broadband factors (externalizing and internalizing) and seven behavior problem scales: rule breaking, hyperactivity/impulsivity, lack of attention, low energy, stereotyped behaviors, lack of social interaction, and lack of self-regulation.