Table 3.

Summary of t-tests comparing the finger group complexity values for Object- and Handling-HSs produced by the child homesigner at each session.

Participant	Age	Number of responses	t-value	df	p-value two-tailed
Child	7;4	81	1.42	9.91	ns
Child	7;10–8;5	94	−0.09	14	ns
Child	9;11	40	−0.22	38	ns
Child	11;4	124	2.44	37.11	0.02*
Child	12;8	97	4.31	95	<0.005**
Child	Total	221

Non-integer values for degrees of freedom (df) reflect use of the t-test for unequal sample variances.

^*p < 0.05,

^**p < 0.01.