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. Author manuscript; available in PMC: 2013 May 22.

Published in final edited form as: J Speech Lang Hear Res. 2012 Aug 15;56(2):375–387. doi: 10.1044/1092-4388(2012/11-0343)

Table 4.

Descriptive statistics for comprehension, production, and extension scores (as proportion correct) by Time and Group.

Time	Comprehension
Time	Group	Mean (SD)
Visit 1	AM (n = 24)	.68 (.18)
	VM (n = 23)	.47 (.23)
	CI (n = 24)	.57 (.21)
Visit 2	AM (n = 11)	.81 (.26)
	VM (n = 12)	.56 (.18)
	CI (n = 20)	.54 (.22)
Weighted difference	AM (n = 10)	.28 (.93)
	VM (n = 12)	−.01 (.69)
	CI (n = 20)	−.12 (.69)

	Production
Time	Group	Mean (SD)

Visit 1	AM (n = 24)	.12 (.13)
	VM (n = 23)	.07 (.10)
	CI (n = 24)	.07 (.10)
Visit 2	AM (n = 11)	.32 (.21)
	VM (n = 12)	.11 (.10)
	CI (n = 20)	.06 (.09)
Weighted Difference	AM (n = 11)	.17 (.28)
	VM (n = 12)	.03 (.14)
	CI (n = 20)	−.01 (.09)

	Extension
Time	Group	Mean (SD)

Visit 1	AM (n = 24)	1.00 (0.00)
	VM (n = 22)	0.89 (0.30)
	CI (n = 24)	0.82 (0.33)
Visit 2	AM (n = 24)
	VM (n = 23)
	CI (n = 20)