Table 2.
Clinical characteristics of overvaluation present (n=52) and overvaluation absent (n=38) groups
| Measure | Overvaluation present group (n=52) | Overvaluation absent group (n=38) | F | Partial η2a |
|---|---|---|---|---|
| Eating Disorder Examination | ||||
| Shape concernb | 3.78 (0.88) | 3.08 (1.12) | 10.92*** | 0.110 |
| Weight concernb | 3.18 (0.95) | 2.57 (0.81) | 10.36*** | 0.105 |
| Restraint | 1.86 (1.33) | 1.37 (1.02) | 3.52 | 0.038 |
| Eating concern | 2.33 (1.33) | 1.52 (1.12) | 9.42** | 0.097 |
| Weekly binge eating | 3.94 (2.10) | 3.65 (2.03) | 0.42 | 0.005 |
| Body mass index, kg/m2 | 38.84 (5.82) | 38.39 (5.62) | 0.135 | 0.002 |
| Beck Depression Inventory | 18.21 (7.00) | 11.89 (7.11) | 17.65*** | 0.167 |
| Rosenberg Self-Esteem Scale | 26.87 (5.91) | 31.44 (5.27) | 14.34*** | 0.140 |
Data are given as mean (standard deviation).
Partial η2 is an effect size measure (cut-off conventions are 0.01–0.09 for small effects and 0.10–0.24 for medium effects).
The Eating Disorder Examination shape concern and weight concern scale scores were calculated without their respective overvaluation items included in the interview’s standard scoring methods. If the overvaluation items were to be included, the means of these scales would be as follows : 3.87 (S.D.=0.86) (shape concern) and 3.45 (S.D.=0.76) (weight concern) for the group categorized with overvaluation present and 2.87 (S.D.=1.01) (shape concern) and 2.42 (S.D.=0.66) (weight concern) for the group categorized as overvaluation absent.
p<0.01,
p<0.001.