Table 3.

Descriptive Statistics for Mother Cognitive Behaviors and Adoptive-Birth Group Differences

	Adoptive		Birth
Behaviors	M	SD	M	SD	F	df	p≤	η2p
Speech to child: Mean z score	4.45	1.69	4.83	1.90	.80	72	ns	.01
Frequency: Rate per hour	327.03	118.09	357.92	124.95
Duration: Proportion of hour	.27	.12	.28	.14
Imitation: Mean z score	2.06	1.58	2.84	2.23	3.08	72	ns	.04
Frequency: Rate per hour	4.15	6.08	8.04	9.88
Duration: Proportion of hour	.002	.003	.003	.004
Direct attention to object: Mean z score	3.71	1.68	3.77	1.94	.01	72	ns	.001
Frequency: Rate per hour	37.24	21.22	40.57	23.77
Duration: Proportion of hour	.12	.08	.11	.09
Quantity of objects	2.84	.75	3.11	.98	1.09	72	ns	.02
Variety	10.19	4.18	10.92	5.08
Density	2.23	.96	2.78	1.88
Consistency	17.54	1.94	8.08	1.96
Quality of objects	2.57	.88	2.43	.81	.52	72	ns	.001
Total responsiveness	9.38	1.17	9.07	1.20
Number of highly responsive objects	1.27	1.33	1.24	1.12
Percentage of highly responsive objects	.13	.13	.12	.10
Encourage balance	.22	.18	.26	.16	1.29	72	ns	.02
Physical encouragement to sit	.39	.32	.47	.27
Physical encouragement to stand	.28	.33	.32	.28
Verbal encouragement to sit	.12	.18	.13	.16
Verbal encouragement to stand	.09	.15	.10	.19
Encourage movement	.03	.05	.04	.05	.40	72	ns	.01
Physical encouragement to roll	.05	.14	.05	.11
Physical encouragement to crawl	.02	.07	.01	.03
Physical encouragement to step	.01	.03	.02	.07