Table 2.

Language Characteristics

	Group	n	Response Length	Grammatical Errors	Filler Words
			Mean (SE)
Formulated Sentences	SLI	16	16.2 (1.4)	0.018 (0.004)	0.031 (0.006)
	HFA	26	15.9 (0.9)	0.040 (0.006)	0.019 (0.003)
	TD	52	13.0 (0.5)	0.008 (0.002)	0.013 (0.002)
Vocabulary	SLI	16	39.4 (2.9)	0.030 (0.004)	0.126 (0.009)
	HFA	26	29.7 (2.1)	0.044 (0.006)	0.093 (0.008)
	TD	52	30.4 (1.4)	0.025 (0.003)	0.103 (0.006)
Similarities	SLI	15	17.6 (1.6)	0.029 (0.006)	0.090 (0.011)
	HFA	25	16.2 (1.2)	0.048 (0.010)	0.068 (0.009)
	TD	51	15.3 (0.9)	0.017 (0.003)	0.063 (0.005)

Specific Language Impairment (SLI), High Functioning Autism (HFA), typically developing (TD), standard error (SE)