Table 1.

Descriptive data for study variables

PCCT Variables	PCCT-Baseline			PCCT-Challenge
	M	SD	Range	M	SD	Range
Child Positive Affect	.29	.33	1.35	.43	.51	2.20
Child Negative Affect	.05	.16	.97	.12	.28	1.74
Mother Positive Affect	.63	.56	3.18	.84	.69	2.85
Mother Negative Affect	.09	.24	1.83	.12	.32	2.10
Child Compliance	1.81	.76	3.89	1.67	.84	3.92
Child Noncompliance	.43	.58	2.42	.40	.55	2.17
Mother Teaching	2.46	1.10	4.90	1.84	1.12	4.50
Mother Intrusion	.33	.50	2.42	.48	.78	3.48
Dyadic Affective Variability	.15	.15	.61	.21	.21	.76
Dyadic Behavioral Variability	.80	.11	.60	.74	.17	.76
Child Average RSA	5.30	1.08	5.13	5.27	1.14	5.16
Mother Average RSA	6.08	.93	4.01	6.00	.94	3.54
Covariate/Outcome	Mother Rating Time 1			Teacher Rating Time 2
	M	SD	Range	M	SD	Range
Child Externalizing Behaviors	7.81	7.37	31	8.03	9.03	41

NOTE: Observed affect and behavior variables are measured in terms of rate per minute values. The N for all variables was 96, except for mother and child RSA (n=45), mother externalizing rating (n=88), and teacher externalizing rating (n=66).