Table 1.

One sample t-test score and mean (SD) for each age group

Condition	Age group
	2 years	3 years	4 years	5 years
Familiar	t(16) = 3.41**	t(26) = 3.15**	t(31) = 4.85**	n.s.
	M = .34 (.41)	M = .27 (.44)	M = .22 (.25)	M = −.00(.15)
Unfamiliar	t(16) = 2.23*	t(26) = 2.04†	n.s.	t(24) = −2.99*
	M = .24 (.44)	M = .18 (.47)	M = .10 (.34)	M = −.13 (.23)

^**p < .01;

^*p < .05;

^†p < .10.