![]() ![]() Weight, height, and waist circumference were measured. ![]() ![]() MethodsĪ randomized sample of 321 healthy children aged 8–16 years (149 boys, 172 girls) from the nationwide representative PASOS study completed the PAU-7S before and after wearing an accelerometer for at least 7 consecutive days. The effect of linear calibration on PAU-7S validity was tested. The aim of this study was to determine test-retest reliability, internal consistency, and the concurrent, construct, and predictive validity of the short semi-quantitative Physical Activity Unit 7 item Screener (PAU-7S), using accelerometry as the reference measurement. Validation of self-reported tools, such as physical activity (PA) questionnaires, is crucial. International Journal of Behavioral Nutrition and Physical Activity volume 18, Article number: 98 ( 2021) Validity, reliability, and calibration of the physical activity unit 7 item screener (PAU-7S) at population scale ![]()
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