Table 2:

Comparison of implementation measures (in mean percentages ± sd) at posttest by experimental condition (completers analysis)

Implementation Measure	Control	Intervention	Test Statistic (t)	p	Cohen’s d	Control	Intervention	Test Statistic (F)	p	Cohen’s d
	Multiple Imputation School Principals (n=118 in each imputation (n=60 Control and n=58 Intervention), 5 imputations)¹					Completer Analysis School Principals (n=108 (n=55 Control and n=53 Intervention))¹
Any element of district’s sun safety policy known	22.8% ± 8.0%	42.5% ± 9.8%	−1.94	.05	.38	17.5% ± 7.3%	40.9% ± 10.5%	5.33	.02	.46
Number of district’s sun safety policy elements accurately known	0.6 ± 0.2	1.0 ± 0.3	−2.46	.02	.33	0.4 ± 0.2	0.8 ± 0.3	7.97	<.01	.35
Percent of district’s sun safety policy elements accurately known	15.8% ± 5.7%	30.4% ± 5.5%	−2.13	.03	.41	14.2% ± 5.7%	30.8% ± 5.7%	5.32	.03	.46
Implemented any sun safety practices	89.0% ± 5.9%	87.6% ± 5.9%	0.22	.83	−.02	90.6% ± 5.4%	88.2% ± 5.8%	0.13	.72	−.01
Number of sun safety practices implemented	2.7 ± 0.4	4.2 ± 0.6	−3.09	<.01	.52	2.7 ± 0.4	4.2 ± 0.5	14.25	<.001	.57
Implemented any of the district’s sun safety policy elements	74.2% ± 9.0%	78.1% ± 7.8%	−0.40	.69	.08	74.4% ± 8.9%	79.5% ± 7.7%	0.26	.61	.10
Number of district’s sun safety policy elements implemented	2.1 ± 0.4	2.9 ± 0.5	−1.99	.05	.32	2.1 ± 0.3	2.8 ± 0.4	5.46	.02	.35
Percent of district’s sun safety policy elements implemented	33.6% ± 6.1%	44.2% ± 5.6%	−1.64	.11	.32	32.9% ± 5.3%	44.1% ± 5.3%	3.80	.06	.35
Implemented any sun safety practices not specified in district’s policy	30.7% ± 8.9%	55.9% ± 10.0%	−2.28	.02	.42	31.5% ± 9.0%	56.0% ± 10.2%	4.69	.03	.41
Number of sun safety practices implemented that are not specified in district’s policy	0.4 ± 0.1	0.9 ± 0.2	−2.98	<.01	.59	0.4 ± 0.1	0.9 ± 0.2	10.27	<.01	.62
Percent of sun safety practices implemented that are not specified in district’s policy	9.6% ± 3.3%	23.1% ± 3.1%	−3.40	<.001	.68	9.2% ± 3.1%	23.5% ± 3.1%	14.33	<.001	.74
	Multiple Imputation Teachers (n=114 in each imputation (n=58 Control and n=56 Intervention), 5 imputations)¹					Completer Analysis Teachers (n=97 (n=48 Control and n=49 Intervention))¹
Any element of district’s sun safety policy known	17.3% ± 13.4%	22.3% ± 15.4%	−0.59	.56	.13	5.8% ± 5.2%	12.7% ± 9.8%	2.28	.14	.30
Number of district’s sun safety policy elements accurately known	0.4 ± 0.2	0.6 ± 0.3	−1.69	.11	.24	0.1 ± 0.1	0.3 ± 0.2	11.03	<.01	.34
Percent of district’s sun safety policy elements accurately known	9.2% ± 7.9%	16.6% ± 7.6%	−1.17	.24	.24	4.5% ± 8.8%	15.3% ± 8.3%	2.75	.10	.34
Implemented any sun safety practices	59.8% ± 25.3%	76.0% ± 17.8%	−1.67	.10	.33	70.1% ± 42.1%	85.8% ± 24.5%	3.39	.07	.38
Number of sun safety practices implemented	1.2 ± 0.5	1.8 ± 0.5	−2.15	<.05	.37	1.1 ± 0.3	1.9 ± 0.5	12.20	<.001	.52
Implemented any of the district’s sun safety policy elements	26.0% ± 21.9%	47.7% ± 27.9%	−2.19	.03	.45	23.1% ± 22.4%	48.2% ± 31.2%	5.96	.02	.52
Number of district’s sun safety policy elements implemented	0.6 ± 0.3	0.9 ± 0.4	−2.12	.04	.32	0.5 ± 0.3	0.9 ± 0.5	10.12	<.01	.43
Percent of district’s sun safety policy elements implemented	15.3% ± 7.9%	24.8% ± 6.9%	−1.62	.11	.34	11.1% ± 7.3%	23.3% ± 6.8%	4.74	.03	.46
Implemented any sun safety practices not specified in district’s policy	23.5% ± 17.2%	43.8% ± 20.5%	−1.92	.06	.39	21.1% ± 15.7%	48.2% ± 22.0%	5.81	.02	.49
Number of sun safety practices implemented that are not specified in district’s policy	0.3 ± 0.1	0.5 ± 0.2	−1.34	.19	.26	0.2 ± 0.1	0.4 ± 0.2	3.91	.05	.36
Percent of sun safety practices implemented that are not specified in district’s policy	5.0% ± 4.5%	11.8% ± 4.1%	−2.15	.03	.40	2.5% ± 4.3%	11.2% ± 4.1%	7.83	<.01	.55
	Multiple Imputation Principals & Teachers Combined (n=232 in each imputation (n=118 Control and n=114 Intervention), 5 imputations)¹					Completer Analysis Principals & Teachers Combined (n=205 (n=103 Control and n=102 Intervention))¹
Any element of district’s sun safety policy known	19.1% ± 11.3%	29.8% ± 15.1%	−1.67	.10	.28	9.7% ± 7.2%	23.1% ± 14.0%	7.27	<.01	.41
Number of district’s sun safety policy elements accurately known	0.6 ± 0.3	1.0 ± 0.5	−2.86	.01	.34	0.2 ± 0.1	0.7 ± 0.4	11.77	<.001	.41
Percent of district’s sun safety policy elements accurately known	9.5% ± 7.5%	20.4% ± 7.4%	−2.23	.03	.33	6.6% ± 8.0%	20.8% ± 7.8%	7.46	<.01	.42
Implemented any sun safety practices	73.1% ± 14.4%	80.9% ± 10.8%	−1.33	.18	.19	78.4% ± 13.5%	85.8% ± 9.6%	1.89	.17	.21
Number of sun safety practices implemented	1.9 ± 0.4	2.8 ± 0.6	−3.88	<.01	.45	1.7 ± 0.4	2.6 ± 0.6	11.41	<.01	.55
Implemented any of the district’s sun safety policy elements	38.2% ± 16.9%	52.0% ± 17.7%	−1.80	.07	.26	37.8% ± 18.8%	53.8% ± 19.7%	3.27	.07	.29
Number of district’s sun safety policy elements implemented	1.0 ± 0.4	1.4 ± 0.6	−3.25	<.01	.35	0.9 ± 0.4	1.3 ± 0.6	7.75	<.01	.41
Percent of district’s sun safety policy elements implemented	19.8% ± 7.0%	30.2% ± 6.7%	−2.16	.03	.33	17.7% ± 7.2%	30.0% ± 7.0%	7.50	<.01	.40
Implemented any sun safety practices not specified in district’s policy	30.4% ± 16.8%	55.1% ± 18.2%	−3.11	<.01	.41	39.5% ± 19.9%	64.6% ± 18.6%	6.45	.01	.43
Number of sun safety practices implemented that are not specified in district’s policy	0.4 ± 0.1	0.7 ± 0.2	−2.96	<.01	.42	0.4 ± 0.1	0.8 ± 0.2	9.66	<.01	.47
Percent of sun safety practices implemented that are not specified in district’s policy	6.1% ± 4.2%	16.2% ± 4.0%	−3.68	<.001	.54	5.4% ± 4.2%	16.8% ± 4.1%	15.64	<.001	.63

Comparison was adjusted for whether respondent was assessed at pretest and posttest or was new in position at posttest, respondent phenotypic index, total number of students enrolled in school, percent of students in Free or Reduced Price Meals program, and percent of White not Hispanic students at school. Sample size is slightly reduced when covariates are added in the models.