A stepped-wedge implementation and evaluation of the healthy active peaceful playgrounds for youth (HAPPY) intervention

Table 4 Unadjusted means and standard deviations for the Physical Activity Support Scale at baseline and follow-up

Family and Peer Support Index	Baseline M (SD) (n = 401)	Follow-up M (SD) (n = 401)	Mean Diff.	P-value	Cohen’s d
Social Support (Adults)
PA encouragement
Male adult	2.1 (1.5)	2.3 (1.5)	0.2	0.211	0.09
Female adult	2.3 (1.4)	2.4 (1.5)	0.1	0.264	0.07
Other children	2.0 (1.5)	2.0 (1.5)	0.0	0.985	0.01
Participated in PA with participants
Male adult	2.2 (1.4)	2.2 (1.4)	0.0	0.817	0.02
Female adult	2.1 (1.3)	2.1 (1.3)	0.0	0.785	0.02
Other children	1.7 (1.7)	1.7 (1.8)	0.0	0.980	0.01
Provided transportation for PA
Male adult	2.2 (1.4)	2.3 (1.4)	0.1	0.445	0.04
Female adult	2.2 (1.5)	2.2 (1.5)	0.0	0.852	0.02
Other children	1.3 (0.9)	1.4 (1.0)	0.1	0.189	0.10
Watched participants participate in PA
Male adult	2.3 (1.4)	2.2 (1.5)	−0.1	0.717	0.03
Female adult	2.3 (1.5)	2.2 (1.5)	−0.1	0.595	0.02
Other children	1.8 (1.4)	1.9 (1.5)	0.1	0.775	0.03
Told you that PA is good
Male adult	1.9 (1.6)	1.9 (1.6)	0.0	0.703	0.04
Female adult	1.9 (1.6)	2.1 (1.6)	0.2	0.282	0.08
Other children	1.7 (1.3)	1.6 (1.3)	−0.1	0.569	0.03
Social Support (Peers)
Encourage friends’ PA	2.3 (1.4)	2.2 (1.5)	−0.1	0.392	0.07
Friends encourage your PA	2.2 (1.4)	2.2 (1.4)	0.0	0.960	0.01
Friends do PA with you	1.7 (1.7)	1.7 (1.8)	0.0	0.731	0.02
Friends tease you about not being good at PA*	3.3 (1.1)	3.4 (1.1)	0.1	0.798	0.05

N.B. As the data was non-parametric, Mann-Whitney tests were implemented. Scale. 0 = none or don’t know, 1 = once, 2 = sometimes, 3 = almost daily, 4 = daily *Scale for this question reverse-coded (0 = none or don’t know, 4 = once, 3 = sometimes, 2 = almost daily, 1 = daily)

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