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Pooled estimated effect size values for nonexecutive cognitive functions, core executive functions, and metacognition. Positive effect size values indicate higher score in outcomes in favor of the active commuting to and from school (ACS) group. Abbreviations: CI, confidence interval; RT, reaction time. (a) = children aged 4 to <6 years old; (b) = children aged ≥6 to 7 years old.
