Table 3.
Estimates for regression models showing linear and nonlinear effects for child sleep minutes on cognitive and adjustment variables
| Teacher-reported academic functioning | Teacher-reported externalizing | Mother-reported internalizing | |
|---|---|---|---|
| Estimate (SE) | |||
| Intercept | .23(.12) | 36.32** (.81) | 49.93** (.58) |
| Race/ethnicity | −.23 (.15) | 1.03 (.96) | −.13 (.69) |
| SES | .35** (.13) | −2.72** (.88) | −.41 (.63) |
| Sleep minutes | .33* (.17) | −2.30* (1.09) | −1.46* (.74) |
| Sleep minutes2 | .14 (.17) | −2.43* (1.16) | −.29 (.79) |
| Sleep minutes × race/ethnicity | −.02 (.17) | −1.23 (1.14) | .47 (.76) |
| Sleep minutes2 × Race/ethnicity | .20 (.20) | −1.50 (1.31) | −.41 (.89) |
| R 2 | .12* (.05) | .12* (.05) | .04 (.03) |
Unstandardized parameter estimates and standard errors are reported. Race/ethnicity was coded as 0 = white/European American and 1 = black/African American.
*p ≤ .05; **p < .01.