Table 1.

Sentence Length, Sentence Position for Target Words and Words Containing Errors for the Stimulus Sentences.

	Mean (Range)	Mean (Range)	Mean (Range)
Sentence Type	Sentence Length in Words	Sentence Position of Target Word	Sentence Position of Error
Nontense	10.43	6.57	5.57
Omission’s	(9–12)	(6–8)	(5–7)
Nontense	10.79	6.43	4.57
Omission–ing	(9–12)	(6–8)	(4–6)
Tense	11.07	7.29	5.93
Omission–s	(10–12)	(6–8)	(4–7)
Tense	10.00	7.14	5.29
Omission–ed	(8–12)	(6–8)	(4–7)
Tense	10.50	6.36	4.79
Intrusion–s	(8–12)	(6–7)	(4–6)
Tense	10.57	6.93	5.21
Intrusion–ed	(8–12)	(6–8)	(4–6)