Table 1.

Mean pre- and post-intervention scores, standard deviations, and effect sizes for outcome variables (N = 5)

Outcome	Pre-test	Post-test	t	Cohen’s d
	M (SD)	M (SD)		Current Study	Laugeson et al. (2009)	Schohl et al. (2014)
SSiS Social Skills	77.8 (13.4)	85.2 (20.7)	1.89	0.42	0.89	0.71
SSiS Problem Behaviors	123.8 (14.0)	113.8 (10.3)	−1.77	0.82		0.47
SSiS Communication	11.4 (2.3)	13 (3.5)	1.97	0.54
SSiS Cooperation	11 (2.3)	12.4 (2.6)	1.36	0.57
SSiS Assertion	10.2 (7.1)	12 (6.0)	1.23	0.27
SSiS Responsibility	11 (1.9)	11 (4.5)	0	0
SSiS Empathy	9 (2.6)	12 (4.5)	2.12	0.81
SSiS Engagement	7 (3.9)	10.4 (4.9)	2.92*	0.77
SSiS Self-Control	11.4 (1.1)	9.8 (3.3)	−0.85	0.65
SSiS Externalizing	9.8 (4.3)	8.6 (2.1)	−0.53	0.36
SSiS Bullying	2.2 (1.9)	1.4 (1.7)	−0.75	0.44
SSiS Hyperactivity/Inattention	10 (5.0)	7.6 (2.6)	−1.31	0.61
SSiS Internalizing	12 (4.1)	8.2 (4.8)	−2.73*	0.85
SSiS Autism Spectrum	22.6 (5.1)	16.4 (7.0)	−4.84**	1.01
SRS-2 Total	79.8 (11.9)	66.2 (12.4)	−5.87**	1.12		1.38
SRS-2 Social Awareness	68.2 (10.5)	64 (6.6)	−1.36	0.48
SRS-2 Social Cognition	73.2 (11.8)	61.6 (11.5)	−3.02*	0.99		1.09
SRS-2 Social Communication	80.4 (9.4)	64.6 (12.8)	−6.18**	1.41		0.81
SRS-2 Social Motivation	73.8 (12.7)	63.6 (12.3)	−4.05*	0.82		0.72
SRS-2 Restricted Interests/Behaviors	78.2 (16.0)	68.8 (14.3)	−2.39	0.62		2.25
SCARED Total	16 (14.8)	9.4 (7.9)	−1.66	0.56
TASSK	11.4 (6.3)	20.2 (1.3)	3.64*	1.92	3.21	2.96
QPQ-P: Hosted Get-Togethers	0.5 (1.0)	2.75 (2.2)	2.64	1.31		0.91
QPQ-A: Hosted Get-Togethers	0.4 (0.9)	3 (2.9)	2.15	1.21	1.14	0.69
QPQ-P: Invited Get-Togethers	0 (0)	1.40 (1.14)	2.75	1.74		0.29
QPQ-A: Invited Get-Togethers	0 (0)	1.20 (1.30)	2.06	1.30		0.72

On the SRS-2, higher scores indicate greater autism symptomatology. Cohen’s d: small (0.2), medium (0.5), and large (0.8)

^*p < .05,

^**p < .01