. Author manuscript; available in PMC: 2017 Feb 1.

Published in final edited form as: J Exp Child Psychol. 2015 Oct 1;142:274–290. doi: 10.1016/j.jecp.2015.08.011

Table 4.

Diurnal cortisol and maternal negative affect

	B	SE(B)	t
Time (Cortisol Slope)	−1.097	0.043	−25.57^**
Maternal Negative Affect	−0.025	0.004	−5.75^**
Time*Maternal Negative Affect	0.023	0.004	5.39^**

Note: Because a R² calculation is not a part of the estimation procedure for mixed models, we calculated R² as the decrease in the proportion of error variance between the final model and an intercepts-only model. ΔR² = 0.87

^**

p < .01.