Abstract Introduction:<\b>
The aim of this study was to analyse the reliability of a parents’ questionnaire to assess the children´s mode of commuting, autonomy, distance to school, and the parents’ mode of commuting to work.Method: A total of 165 parents (mothers n=124) of children and adolescents (aged 9.9±2.4 years) completed twice a questionnaire separated 14-days, from February to May of 2016. The reliability of the Behaviours of Commuting to and From School Questionnaire (i.e. children's mode, autonomy, distance for commuting to school, and parents’ mode of commuting to work) were examined calculating kappa and weighted kappa coefficients in a test-retest design. Results:<\b>
The results showed a good reliability (ranging from 0.81-1.00). There was a very good agreement for the mode of commuting to (k=0.962) and from school (k=0.973), the father’ (k=0.908) and mother´s mode of commuting (k=0.913). Additionally, there was a good agreement (ranging from 0.61-0.81) for the accompaniment on the way to school (k=0.703), and from school (k=0.728), distance (k=0.619) and time from home to school (k=0.639).Conclusions: The Behaviours of Commuting to and From School Questionnaire is a reliable tool to assess the children's and parents’ mode of commuting to school and work, reported by parents. This questionnaire will be useful to administrations and researchers to guarantee an accurate measurement when implementing effective intervention programmes to increase the rates of active commuting to school. External funding details .This study was supported by the Spanish Ministry of Economy, Industry and Competitiveness [DEP2016-75598-R (MINECO/FEDER, UE)], and “I+D+i research staff contract, within the framework of the national youth guarantee system' funded by the Junta de Andalucía and the European Social Fund of the European Union.
