TABLE 4.
Effect sizes (d) and Significance Levels for Condition Differences at Posttest and 6-Month Follow-up from Mixed Effects Growth Models
| Outcome Measure | ||||
|---|---|---|---|---|
| Comparison | Thin-ideal internalization | Body dissatisfaction | Negative affect | Eating disorder symptoms |
| Posttest | ||||
| Clinician-led vs. video control | −.56 (<.001) | −.70 (<.001) | −.38 (<.001) | −.52 (<.001) |
| Peer-led vs. video control | −.68 (<.001) | −.71 (<.001) | −.35 (<.001) | −.38 (<.001) |
| Internet vs. video control | −.45 (<.001) | −.34 (<.001) | −.23 (.005) | −.36 (.001) |
| Clinician-led vs. Internet | −.21 (.022) | −.30 (.002) | −.16 (.004) | −.18 (.089) |
| Peer-led vs. Internet | −.22 (.075) | −.31 (.002) | −.12 (.147) | −.02 (.830) |
| Clinician-led vs. Peer-led | −.06 (.478) | −.02 (.791) | −.05 (.553) | −.15 (.152) |
| 6-month follow-up | ||||
| Clinician-led vs. video control | −.39 (<.001) | −.26 (.023) | −.20 (.031) | −.43 (<.001) |
| Peer-led vs. video control | −.52 (<.001) | −.38 (.001) | −.17 (.093) | −.35 (.001) |
| Internet vs. video control | −.23 (.039) | −.09 (.395) | −.07 (.490) | −.26 (.020) |
| Clinician-led vs. Internet | −.22 (.026) | −.12 (.274) | −.13 (.140) | −.18 (.105) |
| Peer-led vs. Internet | −.28 (.014) | −.25 (.027) | −.10 (.314) | −.10 (.347) |
| Clinician-led vs. Peer-led | .00 (.999) | .11 (.355) | −.04 (.636) | −.07 (.513) |
Note. Effect sizes reported first followed by p-values in parentheses. Significant effects are shown in bold. For each comparison the first group is the reference group.