Table 2.

Descriptive statistics.

Individual level variables	All participants Mean (SD) range	Boys Mean (SD) Range, n = 61	Girls Mean (SD) Range, n = 84	p-Value
Psychological need satisfaction	78.10 (11.06) Range = 39–101	78.64 (10.17) Range = 58–101	77.48 (11.58) Range = 39–98	.530
Autonomy	25.41 (4.15) Range = 15–35	25.14 (4.26) Range = 17–33	25.55 (4.09) Range = 15–35	.563
Competence	21.47 (4.00) Range = 11–30	22.24 (3.78) Range = 15–30	20.81 (3.99) Range = 11–28	.031
Relatedness	31.23 (5.28) Range = 13–40	31.26 (4.96) Range = 13–40	31.12 (5.51) Range = 13–40	.876
Recess steps	950.65 (355.06) Range = 83–1974	1068.40 (369.88) Range = 145–1974	863.42 (321.25) Range = 83–1714	.001
Recess steps per minute	41.70 (12.53) Range = 4–86	47.19 (12.59) Range = 7–86	37.61 (10.94) Range = 4–75	<.001
Recess MVPA (minutes)	8.31 (4.98) Range = 0–23	10.09 (5.07) Range = 0–23	7.10 (4.50) Range = 0–20	<.001
% of school-day PA accumulated at recess	27.28 (11.33) Range = 5.56–64.88	29.53% (11.26) Range = 8.40–61.88	25.65 (11.22) Range = 5.56–64.88	.042

Recess environment-level variables	All participants Mean (SD) range, n	Boys Mean (SD) range, n	Girls Mean (SD) range, n	p-Value
% of children in active play	72.39% (0.15) Range = 40%–100% n = 134 sessions	82.76% (0.12) Range = 40%–100% n = 134 sessions	60.82% (0.20) Range = 10%–100% n = 134 sessions	<.001
Total recess quality score	55.72 (5.80) Range = 34.5–63.0 n = 134 sessions
Safety and structure of environment	17.74 (2.26) Range = 12–21 n = 134 sessions
Adult engagement and supervision	14.40 (1.78) Range = 8–16 n = 134 sessions
Student behaviors	18.10 (2.44) Range = 9–20 n = 134 sessions
Transitions	5.49 (1.19) Range = 2.5–8.0 n = 134 sessions