Table 2.
Unstandardized and standardized coefficients of associations linking sleep minutes, physical activity, and adjustment in adolescence
| Internalizing symptoms |
Externalizing behavior |
|||||||
|---|---|---|---|---|---|---|---|---|
| B | SE | β | R2 | B | SE | β | R2 | |
| Step 1 | 2.5% | 4.3% | ||||||
| Age | −0.02 | 0.08 | −.02 | 0.06 | 0.08 | .06 | ||
| Sex | −0.66 | 1.51 | −.03 | −0.95 | 1.52 | −.04 | ||
| Race/ethnicity | 0.09 | 1.58 | .004 | −1.81 | 1.59 | −.08 | ||
| Socioeconomic status | −0.49 | 0.57 | −.06 | −1.40* | 0.57 | −.17 | ||
| zBMI | −0.94 | 0.72 | −.08 | −0.61 | 0.72 | −.06 | ||
| Step 2 | 10.8% | 5.4% | ||||||
| Sleep minutes | −0.03* | 0.01 | −.14 | −0.01 | 0.01 | −.04 | ||
| Physical activity | −2.29*** | 0.59 | −.25 | −1.12~ | 0.60 | −.13 | ||
| Step 3 | 12.1% | 6.2% | ||||||
| Minutes × Physical activity | 0.02~ | 0.01 | .13 | 0.01 | 0.01 | .07 | ||
Path models covaried age, sex, race/ethnicity, socioeconomic status, and standardized body mass index score (zBMI). Path coefficients reported are from the final model. R2 reported is from the step of entry. SE = standard error. Sex: 0 = female, 1 = male; race: 0 = White, 1 = Black.
~
p < .10.
*
p < .05.
***
p < .001