Table 1.
Means and Standard Deviations of the Variables in the Model
| Mean | SD | |
|---|---|---|
| Physical Activity Variables | ||
| Time 1 Hard PA | 3.50 | 1.94 |
| Time 2 Hard PA | 3.35 | 2.01 |
| Time 3 Hard PA | 3.26 | 1.99 |
| Time 4 Hard PA | 2.95 | 2.03 |
| Time 1 Typical PA | 3.99 | 1.88 |
| Time 2 Typical PA | 3.84 | 1.84 |
| Time 3 Typical PA | 3.73 | 1.81 |
| Time 4 Typical PA | 3.64 | 1.83 |
| Time 1 Compared to Others | 3.54 | 0.91 |
| Time 2 Compared to Others | 3.52 | 0.96 |
| Time 3 Compared to Others | 3.43 | 0.98 |
| Time 4 Compared to Others | 3.37 | 1.02 |
| Time 1 Pedometer | 1.04 | 0.42 |
| Time 2 Pedometer | 1.02 | 0.45 |
| Time 3 Pedometer | 0.99 | 0.42 |
| Time 4 Pedometer | 0.98 | 0.44 |
| Covariates at Time 1 | ||
| Parent Marital Status (% two-parent) | 77% | |
| Race (% White) | 76% | |
| Household Income | 6.74 | 2.51 |
| BMI | 22.4 | 5.36 |
| Physical Maturation | 2.32 | 0.76 |
| Barriers Efficacy | 3.32 | 0.75 |
| Parent PA | 2.49 | 1.63 |
| Friend PA | 3.37 | 1.86 |
| Parent Social Support | 3.44 | 0.86 |
| Friend Social Support | 2.89 | .92 |
| Covariates - Change Scores (Time 4 minusTime 1) | ||
| BMI Change | 2.03 | 3.26 |
| Barriers Efficacy Change | -0.63 | 0.77 |
| Parent PA Change | -0.15 | 1.09 |
| Friend PA Change | -0.43 | 0.98 |
| Parent Social Support Change | 0.54 | 1.56 |
| Friend Social Support Change | -0.28 | 2.52 |