Estimates for regression models showing linear and nonlinear effects for child sleep efficiency on cognitive and adjustment variables
| . | BIA scores . | SAT scores . | Teacher-reported academic functioning . | Teacher-reported externalizing . |
|---|---|---|---|---|
| . | Estimate (SE) . | . | . | . |
| Intercept | 495.36*** (.62) | 646.21*** (2.84) | .23** (.12) | 36.38*** (.92) |
| Race/ethnicity | −5.34*** (1.60) | −18.21** (7.58) | −.76** (.31) | 4.00** (2.07) |
| SES | 1.36** (.65) | 5.42* (2.85) | .30** (.12) | −2.30*** (.79) |
| Sleep efficiency | .42*** (.12) | 1.20** (.57) | .07*** (.02) | −.44*** (.16) |
| Sleep efficiency2 | .02*** (.01) | .04 (.03) | .00* (.00) | −.02** (.01) |
| Sleep efficiency × race/ethnicity | .41 (.26) | .87 (1.21) | .05 (.05) | −.63* (.33) |
| Sleep efficiency2 × race/ethnicity | .04** (.02) | .14** (.07) | .01** (.00) | −.04 (.02) |
| R2 | .15*** (.05) | .11*** (.05) | .16*** (.05) | .15*** (.05) |
| . | BIA scores . | SAT scores . | Teacher-reported academic functioning . | Teacher-reported externalizing . |
|---|---|---|---|---|
| . | Estimate (SE) . | . | . | . |
| Intercept | 495.36*** (.62) | 646.21*** (2.84) | .23** (.12) | 36.38*** (.92) |
| Race/ethnicity | −5.34*** (1.60) | −18.21** (7.58) | −.76** (.31) | 4.00** (2.07) |
| SES | 1.36** (.65) | 5.42* (2.85) | .30** (.12) | −2.30*** (.79) |
| Sleep efficiency | .42*** (.12) | 1.20** (.57) | .07*** (.02) | −.44*** (.16) |
| Sleep efficiency2 | .02*** (.01) | .04 (.03) | .00* (.00) | −.02** (.01) |
| Sleep efficiency × race/ethnicity | .41 (.26) | .87 (1.21) | .05 (.05) | −.63* (.33) |
| Sleep efficiency2 × race/ethnicity | .04** (.02) | .14** (.07) | .01** (.00) | −.04 (.02) |
| R2 | .15*** (.05) | .11*** (.05) | .16*** (.05) | .15*** (.05) |
Unstandardized parameter estimates and standard errors are reported. BIA = Brief Intellectual Ability; SAT = Stanford Achievement Test. Race/ethnicity was coded as 0 = white/European American and 1 = black/African American; sex was coded as 0 = female and 1 = male.
*p < .06; **p ≤ .05; ***p < .01.
Estimates for regression models showing linear and nonlinear effects for child sleep efficiency on cognitive and adjustment variables
| . | BIA scores . | SAT scores . | Teacher-reported academic functioning . | Teacher-reported externalizing . |
|---|---|---|---|---|
| . | Estimate (SE) . | . | . | . |
| Intercept | 495.36*** (.62) | 646.21*** (2.84) | .23** (.12) | 36.38*** (.92) |
| Race/ethnicity | −5.34*** (1.60) | −18.21** (7.58) | −.76** (.31) | 4.00** (2.07) |
| SES | 1.36** (.65) | 5.42* (2.85) | .30** (.12) | −2.30*** (.79) |
| Sleep efficiency | .42*** (.12) | 1.20** (.57) | .07*** (.02) | −.44*** (.16) |
| Sleep efficiency2 | .02*** (.01) | .04 (.03) | .00* (.00) | −.02** (.01) |
| Sleep efficiency × race/ethnicity | .41 (.26) | .87 (1.21) | .05 (.05) | −.63* (.33) |
| Sleep efficiency2 × race/ethnicity | .04** (.02) | .14** (.07) | .01** (.00) | −.04 (.02) |
| R2 | .15*** (.05) | .11*** (.05) | .16*** (.05) | .15*** (.05) |
| . | BIA scores . | SAT scores . | Teacher-reported academic functioning . | Teacher-reported externalizing . |
|---|---|---|---|---|
| . | Estimate (SE) . | . | . | . |
| Intercept | 495.36*** (.62) | 646.21*** (2.84) | .23** (.12) | 36.38*** (.92) |
| Race/ethnicity | −5.34*** (1.60) | −18.21** (7.58) | −.76** (.31) | 4.00** (2.07) |
| SES | 1.36** (.65) | 5.42* (2.85) | .30** (.12) | −2.30*** (.79) |
| Sleep efficiency | .42*** (.12) | 1.20** (.57) | .07*** (.02) | −.44*** (.16) |
| Sleep efficiency2 | .02*** (.01) | .04 (.03) | .00* (.00) | −.02** (.01) |
| Sleep efficiency × race/ethnicity | .41 (.26) | .87 (1.21) | .05 (.05) | −.63* (.33) |
| Sleep efficiency2 × race/ethnicity | .04** (.02) | .14** (.07) | .01** (.00) | −.04 (.02) |
| R2 | .15*** (.05) | .11*** (.05) | .16*** (.05) | .15*** (.05) |
Unstandardized parameter estimates and standard errors are reported. BIA = Brief Intellectual Ability; SAT = Stanford Achievement Test. Race/ethnicity was coded as 0 = white/European American and 1 = black/African American; sex was coded as 0 = female and 1 = male.
*p < .06; **p ≤ .05; ***p < .01.
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