Appendix B.

Descriptive information for each study.

Citation	Mage	N	% Male	Mean Overall Cognitive Ability	Mean Verbal Ability	Intervention length	Comorbidity data	Medication	Peer Tutors	Sources
Andrews et al., 2013	9.02	58	50–90%	112.45	N/A	5 Sessions	N/A	N/A	No	P, TA
Begeer et al., 2011	10.3	36	≥90%	101.39	105	16 Sessions	Yes	N/A	No	P, S, TA
Begeer et al., 2015	9.6	97	≥90%	N/A	106.26	8 Sessions	Yes	Yes	No	P, T, TA
Corbett et al., 2015	11.04	30	50–90%	101.64	101.19	10 Sessions	N/A	Yes	Yes	P, TA
Frankel et al., 2010	8.53	68	50–90%	N/A	103.8	12 Sessions	N/A	No	No	P, S, T
Gantman et al., 2012	20.4	17	50–90%	102.3	95.93	14 Sessions	Yes	Yes	No	P, S
Ichikawa et al., 2013	5.3a	11	50–90%	87.55a	98.5	20 Sessions	N/A	N/A	No	P, O
Kamps et al., 2015	5.8	95	50–90%	N/A	86.3	97 Sessions	N/A	N/A	Yes	T, O
Koenig et al., 2010	9.24	41	50–90%	96.2	N/A	16 Sessions	N/A	Yes	Yes	P
Koning et al., 2013	11.07	15	≥90%	109.3	102.31	15 Sessions	Yes	Yes	No	P, S, O, TA
Laugeson et al., 2009	14.6	33	50–90%	95.24	92.27	12 Sessions	No	Yes	No	P, S
Laugeson et al., 2015	20.42	20	50–90%	105.03	98.17	16 Sessions	Yes	N/A	No	P, S
Lopata et al., 2010	9.47	36	≥90%	103.04	104.32	30 Sessions	N/A	N/A	No	P, S, TA
Rodgers et al., 2015	9.33	60	50–90%	102.77	104.03	30 Sessions	N/A	N/A	No	O*
Schohl et al., 2014	13.65	58	50–90%	100.34	100.31	14 Sessions	Yes	Yes	No	P, S, T
Solomon et al., 2004	9.37	18	≥90%	105.22	105.94	20 Sessions	N/A	N/A	No	TA
Thomeer et al., 2012	9.31	35	50–90%	103.83	103.6	30 Sessions	N/A	N/A	No	P, S, TA
White et al., 2013	14.58	30	50–90%	N/A	97.39	20 Sessions	Yes	Yes	Yes	P
Yoo et al., 2014	13.78	47	≥90%	99.87	100.04	14 Sessions	Yes	Yes	No	P, S, O

Note. P- Parent, S-Self, O- Observer, T- Teacher, TA- Task,

^aMedian score.

^*This study was not included in the overall analyses due to sample overlap with Lopata et al. (2010) and Thomeer et al., (2012). However, it was included in the Observer-report analyses. The Mean Cognitive Ability and Mean Verbal Ability are standard scores. Medication use was categorized by “Yes,” “No,” or “N/A = not available,” if it was indicated by the article or through communication with the author that any of the participants of the intervention were taking medication. Inclusion of a peer tutor was defined as the presence of a typically developing peer that assists or participates in the group social skills intervention.