. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Autism Res. 2011 Feb 9;4(3):177–188. doi: 10.1002/aur.183

Table 6. Expressive Language Characteristics for Participants in PS and MS Stages.

Group (n)	Number of Different Words Produced		PCC

	Range	M (SD)	M (SD)
ASD (30)
ASD PS (21)	0-8	3.52 (2.73)	-
ASD MS (9)	10-30	15.89 (6.47)	58.72 (9.34)
TDA MS (11)	10-62	30.36 (16.13)	65.84 (10.99)
TDL PS (23)	0	0	-

Note. PCC was only calculated for the MS groups who produced 10 or more words. ASD = autism spectrum disorder. TDA = typically developing – age matched. TDL = typically developing – language matched. PS = premeaningful speech. MS = meaningful speech.