Table 5.
Average activity counts before and after intervention (N = 30).
| Covariance parameter estimates | Subject | β | Std. error | Z | p |
|---|---|---|---|---|---|
| Random effects: prediction of activity variability | |||||
| Intercept | ID | 5741.81 | 2195.98 | 2.62 | <.01 |
| Residual | ID | 3233.71 | 999.77 | 3.23 | <.01 |
|
| |||||
| Predictor variables and control variables | β | Std. error | DF | T | p |
|
| |||||
| Fixed effects | |||||
| Intercept (level 1) | 342.60 | 25.33 | 28 | 13.52 | <.01 |
| Time (baseline = 0, follow-up = 1) (level 1) | 18.64 | 23.78 | 22 | 0.78 | .44 |
| Group (general = 0, tailored = 1) (level 2) | 21.67 | 34.69 | 28 | 0.62 | .54 |
| Time × Group (level1 × level2) | −23.09 | 32.34 | 22 | −.71 | .48 |