Table 7.

Multi-level regression of infant dwell times on threat-relevant (versus happy) emotional expressions, age group, and parental gender, dwell times and anxiety dispositions (N = 195)

Fixed Effects	Numerator df	Denominator df	F	p
Intercept	1	194.79	0.57	0.453
Parent Gender (mother versus father)	1	193.96	1.97	0.162
Age group (12 and 18 versus 6-month-olds)	2	194.84	11.06	< 0.001
Emotion (threat-relevant versus happy)	2	298.31	12.59	< 0.001
Parental Dwell Times	1	441.72	4.86	0.028
Parental Anxiety Dispositions	1	193.97	0.01	0.934
Estimates of Fixed Effects
Parameter	ß	SE	df	t	p	95% Confidence Intervals
						Lower Bound	Upper Bound
Intercept	-0.24	0.14	207.90	-1.76	0.080	-0.51	0.03
Mother (vs. Father)	-0.19	0.14	193.96	-1.41	0.162	-0.46	0.08
12 versus 6-month-olds	0.55	0.15	194.25	3.65	< 0.001	0.25	0.85
18 versus 6-month-olds	0.67	0.15	195.70	4.42	< 0.001	0.37	0.97
Angry versus Happy	-0.14	0.04	196.48	-3.12	0.002	-0.23	-0.05
Fearful versus Happy	0.08	0.04	324.14	1.74	0.083	-0.01	0.16
Parental Dwell Times	0.12	0.06	441.72	2.21	0.028	0.01	0.23
Parental Anxiety Dispositions	0.01	0.06	193.97	0.08	0.934	-0.12	0.13
Estimates of Covariance Parameters		Estimate	SE	Wald Z	P	Lower Bound	Upper Bound
Repeated Measures	AR1 diagonal	0.195	0.022	8.916	< 0.001	0.156	0.243
	AR1 rho	0.067	0.111	0.607	0.544	-0.15	0.28
Intercept [subject = ID]	Variance	0.648	0.075	8.623	< 0.001	0.52	0.81

df degrees of freedom, F F-value, p significance level, ß Beta, SE Standard Error, t t-value