Evidence of the validity of the child self-regulation & behaviour questionnaire for the Brazilian context

Poor early childhood self-regulation is related to many mental health problems and antisocial behaviours, so it is important to use psychometrically sound instruments to assess children's self-regulation and behavioural development. The aim of this study is to report the translation, adaptation, as well as explore the construct validity of the child self-regulation & behaviour questionnaire (CSBQ) for the Brazilian context. The process consisted of different steps, such as transcultural translation, item intelligibility analysis, and psychometric analysis based on classical and contemporary theories. The validation process was carried out on a sample of 277 parents/caregivers (35.00 ± 6.72 years old) of 281 children (4.92 ± 1.45 years old; 156 females). The final Brazilian version showed adequate values of semantic, idiomatic, and conceptual equivalence. The validation process resulted in a seven-dimensional model with 33 items. The validation of Brazilian CSBQ is promising for investigating early self-regulation and behaviour problems in low-middle income contexts.