Table 3.

Descriptive statistics for performance on each task.

Variable	ASD intervention group				Non-ASD group
	Timepoint 1		Timepoint 2		Timepoint 1		Timepoint 2
	M (SD)	Range	M (SD)	Range	M (SD)	Range	M (SD)	Range
Working memory measure
Spatial subtest	12.8 (3.3)∗	6–19	14.6 (3.7)∗	7–22	16.4 (3.1)	12–21	16.1 (2.0)	12–20
Verbal (digit) subtest	13.6 (2.4)	9–18	14.6 (3.3)	7–22	16.1 (2.5)	13–23	15.6 (2.5)	12–21
Combined (spatial + verbal)	26.4 (4.7)∗	17–33	29.2 (5.8)∗	14–40	32.6 (4.3)	27–40	31.7 (3.8)	26–40
Inhibitory control measure
Inhibitory effect	.09 (.06)	−.03–.23	.07 (.04)	−.01–.12	.08 (.05)	.00–.18	.09 (.05)	.00–.16
Task switching measure
Switching costs	.18 (.17)	−.02–.72	.15 (.13)	−.01–.42	—	—	—	—
Mixing costs	.54 (.24)	.26–1.21	.40 (.20)	.08–.82	—	—	—	—

^∗Effect of Timepoint, p < .05.