(A) Individual participant data points plotting YPAQ-derived MVPA versus accelerometer-derived MVPA. (B) Bland-Altman plot with mean bias and 95% limits of agreement (noted by shaded section and upper and lower dashed lines). MVPA, moderate-to-vigorous physical activity; YPAQ, Youth Physical Activity Questionnaire. (A) Individual participant data points plotting YPAQ-derived MVPA versus accelerometer-derived MVPA. (B) Bland-Altman plot with mean bias and 95% limits of agreement (noted by shaded section and upper and lower dashed lines). MVPA, moderate-to-vigorous physical activity; YPAQ, Youth Physical Activity Questionnaire. Paul Robert Walker McCrorie et al. BMJ Open Sport Exerc Med 2017;2:e000163 ©2017 by BMJ Publishing Group Ltd