Table 4. Intention-to-treat analysis of latent growth curve modeling of depressive symptoms in individuals with depressive disordera. The Gelman–Rubin statistic (rhat) for all coefficients was 1.0. The number of participants in the experiment and waitlist groups was 346 and 331, respectively.
| Depressive symptomsa | Intervention effect | Baseline (Wave 1), mean (SD) | Wave 2, mean (SD) | Wave 3, mean (SD) | Wave 4, mean (SD) | SMDb | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| B | 95% LLc | 95% ULd | Wald | P value | ||||||
| Experiment | –0.28 | –0.61 | 0.04 | –1.64 | .10 | 12.27 (4.86) | 11.31 (5.29) | 10.53 (5.25) | 9.86 (5.53) | –0.08 |
| Waitlist | —e | — | — | — | — | 11.90 (4.75) | 11.09 (5.37) | 10.96 (5.74) | 9.83 (5.75) | — |
a
Widely Applicable Bayesian Information Criterion (WAIC) -6716.6, leave-one-out (LOO) -6799.8.
b
SMD: standardized mean difference.
c
LL: lower limit.
d
UL: upper limit.
e
Not applicable.