Table 4. Change in parent-reported survey scores by user group. Results include 72 families who played GuessWhat and a comparison group of 19 matched participants who did not play GuessWhat but completed all other procedures. Reductions in SRS-2 and increases in VABS-II scores are indicative of improvement and vice versa .

Measure	Mean change from pre-test to post-test (SD)
	All treated players	p -Value	Users treated with ≥28 sessions	p -Value	Users with 4 wk. treatment consistency	p -Value	Comparison group	p -Value
SRS-2 total T-score	−3.97 (SD = 4.92)	<0.001 c	−3.82 (SD = 5.70)	0.01 a	−2.85 (SD = 4.56)	0.03 a	−4.71 (SD = 7.92)	0.10
VABS-II socialization standard score	5.27 (SD = 9.29)	0.002 b	6.21 (SD = 8.13)	0.11	5.46 (SD = 6.75)	0.58	−1.61 (SD = 12.37)	0.62

^ap <0.05.

^bp <0.01.

^cp <0.001 between cohorts from a two-tailed paired sample t -test.