Table 4.

Mean comprehension accuracy (percentage correct) by subject group (specific language impairment [SLI], typically developing [TD]), age group, and sentence type (subject–verb–object [SVO], subject relative [SR], passive, object relative [OR]).

Group	Sentence Type
	SVO	SR	Passive	OR
SLI
Younger (n = 53)
M	55	56	29	30
SD	25	21	20	13
Range	6–94	15–94	0–79	9–69
Older (n = 64)
M	72	69	33	27
SD	21	22	23	17
Range	16–100	21–100	0–97	0–73
Grand (N = 117)
M	65	63	30	28
SD	24	22	22	15
Range	6–100	15–100	0–97	0–73
TD
Younger (n = 61)
M	77	74	49	39
SD	20	20	29	26
Range	6–100	27–100	0–100	0–100
Older (n = 56)
M	87	82	62	57
SD	13	14	31	30
Range	52–100	42–100	0–100	3–97
Grand (N =117)
M	83	78	55	48
SD	18	18	30	29
Range	6–100	27–100	0–100	0–100
Adults (N = 40)
M	98	97	88	86
SD	5	6	27	28
Range	82–100	82–100	0–100	0–100