Table 4.

Percentage within impaired range on each language measure for the total group and divided by ASD subgroups

		Receptive language		Expressive language		Phonology
		Sentence comprehension (RDLS), n=83	Word comprehension (SPIQ), n=83	Word analogies (ITPA), n=66	Grammar (PT), n=81	Phonological speech production (ASPA), n=82	Phonological processing (NWRT), n=78
Total ASD subgroup	n=83	53	16	52	64	21	41
	AD (n=20)	60	45	75	80	21	39
	PDD-NOS (n=37)	59	11	62	76	27	53
	AS (n=12)	42	0	0	18	0	8
	AFs (n=14)	36	0	44	46	21	43

Abbreviations: AD, autistic disorder; AFs, autistic features; AS, Asperger’s syndrome; ASD, autism spectrum disorder; ITPA, Illinois Test of Psycholinguistic Abilities; NWRT, nonword-repetition task; PT, Processability Test; PSPA, phonological speech-production assessment; PDD-NOS, pervasive developmental disorder-not otherwise specified; RDLS, Reynell Developmental Language Scale; SPIQ, Snabbt Performancetest på Intelligence (IQ).