Table 1. Mean Age and Psychometric Scores for the Typically Developing Group and the Autism Spectrum Disorder Group.

Measure	TD group (n = 14)		ASD group (n = 14)		Group differences
	M	SD	M	SD	F(1, 26)	p
Note. TD = typically developing; ASD = autism spectrum disorder; BPVS = British Picture Vocabulary Scale; RPM = Raven’s Standard Progressive Matrices.
Chronological age (years)	12.1	0.2	12.2	0.6	1.31	.26
Standardized BPVS	120.6	19.7	109.5	13.7	2.99	.10
RPM	46.4	7.4	43.9	6.4	0.91	.35