The Validity and Reliability of the Physical Activity Questionnaires (PAQ-A) among Indonesian Adolescents during Online and Blended Learning Schooling

Research objectives. This study aimed to validate the use of Physical Activity Questionnaire Adolescent (PAQ-A), a physical activity instrument widely used in school setting, among Indonesian adolescents, particularly during blended learning or online schooling due COVID-19 restrictions. 
 Materials and methods. was cross-sectional survey 370 adolescents (62.2% female, mean 15±2 years) participating learning. Participants completed version PAQ-A online. Sixty-three (17%) participants same questionnaire one week later (second survey) for test-retest reliability, from which intraclass correlation coefficients (ICC) were calculated. Internal consistency reliability calculated both surveys, while confirmatory factor analysis (CFA) analyzed data first survey.
 Results. The Cronbach alpha second surveys 0.78 0.82, thus indicating acceptability internal reliability. ICC all items ranged 0.40 0.81, fair excellent test retest root means square error approximation 0.033 suggesting acceptable construct validity instrument.
 Conclusions. In conclusion, sufficient evidence shows justify questionnaires measuring levels setting.