TABLE 2.

Energy expenditure rate and proportion of observed intervals for girls' activity, lesson context, and teacher physical activity promotion.

	All Lessons	Field Site	Test of Equality across Field Sites
	Mean (SD)	Range	F	P	r
Lesson EER (kcal·kg⁻¹ min⁻¹)	0.073 (0.013)	0.062−0.082	8.36	< 0.001	0.76
Student activity (%)
Lying down	0.6 (1.8)	0.1−1.5	2.70	0.040	0.56
Sitting	31.6 (22.6)	17.1−44.7	11.71	< 0.001	0.81
Standing	29.9 (15.0)	22.7−37.7	4.73	0.003	0.66
Walking	24.8 (15.1)	15.0−37.2	16.27	< 0.001	0.85
Vigorous	13.1 (11.7)	4.4−18.4	4.91	0.002	0.67
MVPA (walk + vigorous)	37.9 (18.5)	24.0−53.2	11.95	< 0.001	0.82
Lesson context (%)
Management	26.1 (12.9)	19.4−35.1	6.24	< 0.001	0.71
Knowledge	10.6 (14.0)	1.4−14.6	5.77	0.001	0.70
Fitness activity	19.7 (24.7)	8.8−27.5	2.45	0.057	0.54
Skill drills	12.1 (21.1)	7.2−18.8	1.25	0.309	0.42
Game play	27.3 (29.0)	21.3−38.2	0.88	0.509	0.36
Free play	4.4 (16.9)	0.0−11.8	0.74	0.601	0.33
Teacher interaction (%)
In-class	2.3 (4.4)	0.1−4.6	5.26	0.001	0.68
Out-of-class	0.7 (8.0)	0.0−3.9	2.03	0.103	0.50
None	97.1 (9.2)	94.1−99.9	2.96	0.027	0.57

TAAG field site comparisons: ndf = 5; ddf = 30. EER, energy expenditure rate estimation; MVPA, moderate to vigorous physical activity (walking + vigorous).