. Author manuscript; available in PMC: 2013 Nov 4.

Published in final edited form as: Biol Psychiatry. 2011 Aug 12;70(11):10.1016/j.biopsych.2011.06.017. doi: 10.1016/j.biopsych.2011.06.017

Table 1.

Fixed, Random, and Covariance Estimates of Mean Cortisol Levels at the End of the Psychosocial Stress Test and Cortisol Changes During the Baseline and Response Phases in the Total Sample of Children (n = 190)

	Statistics
Parameters	B	SE	CR
Fixed (means)
Intercept (y₀)	2.97	.13	23.43^a
Baseline slope (y_b)	−.07	.03	− 2.56^b
Response slope (y_r)	.21	.05	4.49^a
Random (variances)
Intercept (σ₀)	1.70	.24	7.02^a
Baseline slope (σ_b)	.05	.01	3.32^a
Response slope (σ_r)	.18	.06	2.83^c
Covariances
Intercept – Baseline slope (y₀,y_b)	−.04	.05	− .75
Intercept – Response slope (y₀,y_r)	.11	.09	1.25
Baseline – Response slope (y_b,y_r)	.08	.02	3.28^a

The CR refers to the ratio of the unstandardized beta estimate over the standard error (B/SE). Fit statistics: χ² = 41.24, df = 10, CFI = .94, RMSEA = .13, SRMR = .07. The fixed estimate of the intercept represents the mean cortisol level at the end of the Psychosocial Stress Test, while the fixed estimates of the baseline and response slopes reflect the change of cortisol (nmol/L) per 10-minute interval.

B, unstandardized beta estimate; CFI, confirmatory fit index; CR, Critical Ratio; RMSEA, root mean square error of approximation; SE, standard error; SRMR, standardized root mean square residual.

p< .001.

p< .05.

p< .01.