Table 5.

Percentage of correct verbs and sentences by optionality of arguments on three tests of the NAVS-C, by participant

	Verb Naming Test (VNT)		Verb Comprehension Test (VCT)		Argument Structure Priming Test (ASPT)
	Obligatory	Optional	Obligatory	Optional	Obligatory	Optional
1	83	70	83	60	75	70
2	83	70	83	50	83	65
3	67	60	75	70	58	80
4	83	70	75	70	75	65
5	50	70	58	70	67	45
6	75	50	67	60	92	55
7	75	50	67	50	58	50
8	67	60	58	50	75	90
9	75	70	75	40	58	65
10	83	60	58	60	58	70
11	83	70	67	70	92	65
12	58	70	67	70	67	65
13	58	60	67	50	83	55
14	83	50	92	80	58	70
15	58	60	75	60	83	70
Mean (SD)	72 (11)	62(8)*	71(9)	61(11)*	73(12)	65(11)*

^*significant difference (p < .05) between obligatory and optional verbs.