TABLE 2.
Results from the individual growth models examining differences in parent and peer support across ages 9 to 15 yr for girls who did and did not maintain PA.
| Parental Logistic Support | Parental Modeling | Peer Support | |
|---|---|---|---|
| Intercept (age 9 yr) | 75.22 (1.72)*** | 61.54 (1.39)*** | 63.59 (1.50)*** |
| Time | 1.46 (1.49) | −1.65 (0.45)*** | 8.11 (1.76)*** |
| Time × time | −1.34 (.44)** | −1.99 (0.53)*** | |
| Maintain PA | −0.09 (3.35) | 7.55 (2.81)** | 3.66 (2.85) |
| Time × maintain PA | 2.87 (1.42)* | −1.53 (91) | −0.88 (1.55) |
| Prior PA | 2.46 (0.71)*** | 0.41 (65) | 1.78 (0.75)* |
| Maternal education | 0.34 (0.51) | ||
| Peer support | 0.05 (0.04) | ||
| Parental logistic support | 0.08 (0.05) | ||
|
| |||
| Variance components for unconditional growth model | |||
| Level 1 (within-person) | 67.13 (6.94) | 44.69 (4.61) | 101.92 (10.54) |
| Level 2 (intercept) | 149.31 (28.90) | 117.36 (21.81) | 76.56 (22.93) |
| Level 2 (slope) | 23.61 (5.59) | 5.59 (2.33) | 23.28 (6.80) |
|
| |||
| Variance components for full model | |||
| Level 1 (within-person) | 70.94 (7.58) | 44.77 (4.63) | 104.62 (11.16) |
| Level 2 (intercept) | 139.52 (28.81) | 106.54 (20.51) | 64.95 (21.05) |
| Level 2 (slope) | 20.96 (7.587) | 5.43 (2.33) | 21.06 (7.18) |
|
| |||
| Pseudo R2 (intercept)a | 0.065 | 0.092 | 0.152 |
| Pseudo R2 (slope)b | 0.112 | 0.028 | 0.095 |
*
P < 0.05.
**
P < 0.01.
***
P < 0.001.
Pseudo R 2 = between-subject variance in the intercept (a ) and slope (b ) that is explained by the level 2 covariates.