Table 4. Variability in average activity counts before and after intervention: general activity pacing group only (n=14).
| Covariance parameter estimates | Subject | β | Std. error | Z | p |
|---|---|---|---|---|---|
| Random effects: prediction of activity variability | |||||
| Intercept | ID | 743.74 | 494.38 | 1.50 | .07 |
| Residual | ID | 736.47 | 328.08 | 2.24 | .01 |
|
| |||||
| Predictor variables and control variables | β | Std. error | DF | t | p |
|
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| Fixed effects | |||||
| Intercept | 4.65 | 31.61 | 13 | 0.15 | .88 |
| Average activity counts per minute (level 1) | 0.42 | 0.87 | 9 | 4.80 | <.01 |
| Time (baseline = 0, follow-up = 1) (level 1) | 20.47 | 11.39 | 9 | 1.80 | .11 |