Claims

Girls in Playworks schools were less likely to be sedentary and more likely to engage in jumping, tag, and playground games during recess

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2015 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i? Recess observations showed girls in the treatment group were less likely than controls to be sedentary and more likely to engage in jumping, tag, and playground games. → Martha Bleeker 2015

Evidence

Martha Bleeker 2015

Martha Bleeker, Nicholas Beyler, Susanne James-Burdumy, Jane Fortson. (2015). The Impact of Playworks on Boys' and Girls' Physical Activity During Recess. Journal of School Health, vol. 85, no. 3. https://www.mathematica.org/publications/the-impact-of-playworks-on-boys-and-girls-physical-activity-during-recess

q3 · i? · causal · r2

Observational recess data collected alongside accelerometer measurement in the 29-school randomized trial. The article reports significant impacts on girls' activity types, with treatment girls less sedentary and more often jumping, playing tag, and playing playground games; no effect sizes are printed.

"A significant impact was also found on the types of activities in which girls engaged during recess; girls in the treatment group were less likely than those in the control group to be sedentary and more likely to engage in jumping, tag, and playground games."

Discussion

Learner Variables

Page metadata
Field Value
type claim
id playworks-girls-recess-activity-types
title Girls in Playworks schools were less likely to be sedentary and more likely to engage in jumping, tag, and playground games during recess
description Girls in Playworks schools were less likely to be sedentary and more likely to engage in jumping, tag, and playground games during recess
status review
evidence_strength moderate
newest_evidence 2015
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — martha-bleeker-2015

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