Table 6.
Age and incentive effects on step count change after the incentivized period ended
| Variable | B | SE B | p | 95% CI | |
|---|---|---|---|---|---|
| Intercept | .003 | .05 | .956 | −0.09 | 0.09 |
| Age | .13 | .05 | .006 | 0.04 | 0.22 |
| Incentive vs. control | .04 | .02 | .119 | −0.01 | 0.08 |
| Personal vs. prosocial | .08 | .04 | .065 | −0.01 | 0.16 |
| Loved one vs. charity | −.07 | .07 | .318 | −0.22 | 0.07 |
| Choice vs. assigned | −.03 | .03 | .395 | −0.08 | 0.03 |
| Incentive type (contrast) x age | |||||
| Incentives vs. control x age | .03 | .02 | .273 | −0.02 | 0.07 |
| Personal vs. prosocial x age | .06 | .04 | .150 | −0.02 | 0.14 |
| Loved one vs. charity x age | −.13 | .07 | .078 | −0.27 | 0.01 |
| Choice vs. assigned x age | −.06 | .03 | .063 | −0.11 | 0.00 |
| Adjusted R2 | .03 | ||||
Note. N = 450. Step count change was calculated as the standardized residuals obtained by regressing post-incentive week steps on baseline steps, and winsorized to +/− 3 standard deviations to account for outliers. Age was standardized (i.e., M = 0, SD = 1) to increase interpretability of condition effects. Conditions were compared using orthogonal contrasts, see Table S1. Bold values indicate p < .05.