Table 4.

Multilevel Models for Self-Soothing

	Bout Frequency			Bout Average Duration			Bout Dominance
Fixed Effects	Estimate (SE)		95% CI	Estimate (SE)		95% CI	Estimate (SE)		95% CI
Intercept	2.724 (.316)**		2.104, 3.344	9.992 (3.334)**		3.456, 16.529	.203 (.024)**		.157, .249
Linear Slope	−1.077 (.414)**		−1.888, −.265	−2.500 (4.215)		−102.764, 5.764	−.106 (.031)**		−.168, −.045
Quadratic Slope	.135 (.116)		−.094, .363	.112 (1.251)		−2.340, 2.565	.017 (.009)+		−.001, .034
Random Effects	SD	Corr.	Corr.	SD	Corr.	Corr.	SD	Corr.	Corr.
Intercept (SD)	2.974			33.337			.231
Linear Slope (SD)	3.539	−.837		39.522	−.744		.290	−.866
Quadratic Slope (SD)	.900	.743	−.988	11.433	.530	−.961	.075	.796	−.992
Residual	1.616			15.559			.103
Model Fit
AIC		1997.083			4004.405			−366.544
BIC		2042.063			4049.360			−321.590
Log Likelihood		−987.542			−1991.203			194.272

Note. N = 120 children, 441 observations;

⁺p < .10,

^**p < .01;

SE = Standard Error; SD = Standard Deviation; CI = Confidence Interval.