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Table 3 Criteria were rated “1” if evidence was found in the article. Within-subjet designs: No power calculation required.

From: Effects of school-based physical activity on mathematics performance in children: a systematic review

 1. Randomisation2. Baseline Comparable3. Baseline Values Accounted for in Analyses4. Timing5. Blinding of Measuring6. Validated Outcome Measures7. Dropout Analysis8. Reporting of Results9. Power CalculationTotal Score
Between-groups designs
 Beck et al. (2016)1111011006/9
 Da Cruz (2017)1111111119/9
 Davis et al. (2011)1111111007/9
 Donnelly et al. (2009)1111111119/9
 Donnelly et al. (2017)1111111118/9
 Elofsson et al. (2018)1111000105/9
 Erwin et al. (2012)0111010105/9
 Fedewa et al. (2015)1011010105/9
 Gao et al. (2013)0011011105/9
 Hraste et al. (2018)1111010106/9
 Katz et al. (2010)1111010106/9
 Lubans et al. (2018)1111111119/9
 Mavilidi et al. (2018)1111000105/9
 Mead et al. (2016)1111011107/9
 Mullender-Wijnsma et al. (2015)1011011106/9
 Mullender-Wijnsma et al. (2016)1011011116/9
 Resaland et al. (2016)1111011117/9
 Resaland et al. (2018)1111011107/9
 Riley et al. (2016)1111011117/9
 Sallis et al. (1999)1010010104/9
 Sjöwall et al. (2017)0111001105/9
 Snyder et al. (2017)0111000104/9
 Tarp et al. (2016)1111001116/9
 Thompson et al. (2016)1111010106/9
 Watson et al. (2018)1111010106/9
 Vetter at al. (2018)1111010106/9
Within-subjects design
 Harveson et al. (2018)11110101 6/8
 Phillips et al. (2015)11110111 7/8
 Howie et al. (2015)11110011 6/8
 Travlos (2010)00110011 4/8
SUM OF ALL STUDIES252430295231828  
  1. 1. SELECTION BIAS. Randomization of conditions (cluster randomization accepted). 2. SELECTION BIAS. Baseline comparable on key characteristics. 3. PERFORMANCE BIAS. Baseline values accounted for in the analyses. 4. PERFORMANCE BIAS. Timing of intervention and measurements. 5. PERFORMANCE BIAS. Blinding of measuring. 6. DETECTION BIAS. Validated measures of mathematics outcome(s) used. 7. ATTRITION BIAS. Dropout not more than 20% for interventions < 6 months and not more than 30% for > 6 months. 8. REPORTING BIAS. 9. OTHER BIAS. Power calculation performed