Table 2. Energy Games survey results.

Pre- and post-survey means and standard deviations, change between surveys, and Cohen’s d measure of effect size. For binomial variables, the proportion responding no/yes and change between proportions responding yes are shown. Index variables show Cronbach’s alpha in ().

	pre-survey		post-survey		change			effect size
	mean.0	sd.0	mean.1	sd.1	Δmean		sd	d
SA (a = .75)	5.23	0.72	5.49	0.85	0.26	*	0.83	0.32
SSN (a = .83)	5.42	1.01	5.43	1.16	0.01		1.11
SPBC (a = .89)	3.9	1.09	4.56	0.99	0.66	***	1	0.66
SIquote	4.11	1.56	4.72	1.65	0.61	***	0.96	0.63
	No	Yes	No	Yes	Δproportion
SBquote	0.87	0.13	0.8	0.2	0.07

note:.p < .1

*p < .05

**p < .01

***p < .001.