Table 6.

Means (SDs), univariate F values, and effect sizes for outcome variables in male participants.

Variable	Scale range	Baseline, mean (SD)		After the intervention						Follow-up
		Intervention	Control	Intervention, mean (SD)	Control, mean (SD)	F test (df)	P value	Effect sizea	Intervention, mean (SD)		Control, mean (SD)	F test (df)	P value	Effect sizea
Body Image Ideals Questionnaireb	−3 to 9	2.12 (1.17)	1.59 (1.12)	1.24 (0.95)	1.53 (1.20)	16.07c (1)	<.001d	0.15	1.69 (1.23)		1.32 (1.24)	0.69 (1)	.41	0.007
Body Appreciation Scale-2e	1 to 5	3.45 (0.73)	3.55 (0.68)	3.83 (0.065)	3.61 (0.068)	5.71f (1)	.02	0.057	3.75 (0.07)		3.60 (0.073)	20.32 (1)	.13	0.024
Self-Compassion Scale-Short Forme	1 to 5	3.00 (0.60)	3.15 (0.64)	3.33 (0.054)	3.17 (0.057)	4.039f (1)	.047	0.041	3.24 (0.06)		3.12 (0.060)	10.79 (1)	.18	0.019
SATAQ-4Rg: Muscularity internalisationb	1 to 5	3.44 (0.74)	3.28 (0.81)	3.17 (0.092)	3.20 (0.097)	.070 (1)	.79	0.001	3.27 (0.09)		3.25 (0.093)	0.018 (1)	.89	0.000
SATAQ-4R: Peer pressureb	1 to 5	2.79 (1.14)	2.78 (1.10)	2.57 (0.12)	2.85 (0.12)	2.72 (1)	.10	0.028	2.48 (0.10)		2.63 (0.11)	0.99 (1)	.32	0.01
SATAQ-4R: Media pressureb	1 to 5	2.70 (1.10)	2.71 (1.05)	2.54 (0.13)	2.62 (0.13)	0.17 (1)	.68	0.002	2.78 (0.12)		2.65 (0.12)	0.61 (1)	.44	0.006

^aEffect sizes of 0.01=small, 0.06=moderate, and 0.14=large [68].

^bLower scores are more desirable.

^cP<.001.

^dItalicized values indicate a significant P value at .05.

^eHigher scores are more desirable.

^fP<.05.

^gSATAQ-4R: Sociocultural Attitudes Toward Appearance Questionnaire-4 Revised.