Table 4. Intent-to-treat psychological and motivation measurements of 89 randomized patients across treatment assessments.
Pre-treatmenta | Post-treatment | 3-month follow-up | Test Statistic | |||||||
---|---|---|---|---|---|---|---|---|---|---|
MIC | NPC | UC | MIC | NPC | UC | MIC | NPC | UC | F-test/ (Partial Eta2) | |
Variable | (M/SD) | (M/SD) | (M/SD) | (M/SD) | (M/SD) | (M/SD) | (M/SD) | (M/SD) | (M/SD) | Time (Main effect) |
Time × Randomization | ||||||||||
EDE-Global | 2.1(0.9) | 1.6(0.8) | 1.6(0.9) | 1.7(0.8) | 1.2(0.5) | 1.5(0.9) | 1.7(1.0) | 1.3(0.7) | 1.5(0.9) | F(2, 172)=12.18, p<.0005/ (.124) |
F(4, 172)=2.14, p=.078/ (.047) | ||||||||||
BDI | 7.8(6.5) | 7.9(5.7) | 6.9(5.7) | 6.3(5.7) | 5.1(3.9) | 6.9(6.2) | 7.3(7.1) | 5.4(4.7) | 7.8(8.4) | F(2, 172)=4.97, p=.008/ (.055) |
F(4, 172)=2.52, p=.043/ (.055) | ||||||||||
AM | 6.6(0.7) | 6.7(0.6) | 6.7(0.4) | 6.6(0.7) | 6.5(0.7) | 6.3(1.0) | 6.4(0.9) | 6.4(0.8) | 6.5(1.0) | F(2, 172)=5.69, p=.004/ (.062) |
F(4, 172)=1.44, p=.222/ (.032) |
Note: MIC=Motivational Interviewing and Internet Condition. NPC=Nutrition Psychoeducation and Internet Condition. UC=Usual Care. EDE=Eating Disorder Examination. BDI=Beck Depression Inventory, AM=Autonomous Motivation subscale.
= no significant differences at baseline, with the exception of EDE-Global.