Fitted Within-Person Relations Between Child Care Hours and Children’s Salivary Cortisol Levels, as a Function of Cumulative Environmental Risk and Child Age.
Note. N = 1,155. The y-axis represents the cortisol grand mean ± 2 SD (total cortisol variation). The x-axis represents the grand mean ± 2 SD (within-child variation only). The simple slopes for child care hours are statistically significant at 24 months of age (Bhirisk = 0.007, p = .002, βhirisk = .14; Blorisk = −0.007, p = .002, βlorisk = .14). mo. = months.