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Table 2 Data elements to be collected, study timepoints (T0, T1, T2) target groups

From: Effects of a multi-level intervention on the pattern of physical activity among in-school adolescents in Oyo state Nigeria: a cluster randomised trial

Description of outcome measures Method Type of variable Timing Target group
Demographic characteristics, Socio-economic status Questionnaire Ordered categorical T0 T1 T2 Adolescents
Knowledge, attitude, beliefs on nutrition and PA Questionnaire Ordered categorical T0 T1 T2 Adolescents
Self-reported physical activity levels Physical Activity Questionnaire (PAQ –A) for adolescents Continuos T0 T1 T2 Adolescents
Ordered categorical
PA Self efficacy Questionnaire Ordered categorical T0 T1 T2 Adolescents
Perceived behavioural control and intention Questionnaire Ordered categorical T0 T1 T2 Adolescents
Fitness level measured using the 20-mSRT 20-mSRT Ordered categorical T0 T1 T2 Adolescents
Step count (average steps/day) Pedometers Continuous T0 T1 T2 Adolescents
Anthropometric and Physical assessments (BP, Ht, Wgt, BMI) Brief physical assessment Continuous T0 T1 T2 Adolescents
Social Norms and Social support, Questionnaire Ordered categorical T0 T1 T2 Adolescents, Teachers, School Heads
Built environment Observation and checklist Ordered categorical T0 School Environment
Policy or programme changes Key Informant interviews Qualitative T0 T1 T2 School Heads, Officials of Govt. and Ministries Policy Makers,