Table 1. Study 1: Effects of a brief interactive stigma reduction intervention over two weeks in a student sample (N = 128).
| Experimental group | Control group | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | Post-intervention | Baseline | Post-intervention | Groupa | Group x Timeb | Timeb | ||||||||
| M | SD | M | SD | M | SD | M | SD | F(1, 125) | η2 | F(1, 126) | η2 | F(1, 126) | η2 | |
| Explicit measures | ||||||||||||||
| Stigmatizing attitudes (AFAT) | 1.98 | 0.47 | 1.85 | 0.41 | 2.25 | 0.65 | 2.22 | 0.69 | 7.36** | 0.06 | 4.23* | 0.03 | 9.42*** | 0.07 |
| Controllability beliefs (BAOP) | 18.00 | 7.70 | 25.27 | 6.66 | 16.52 | 6.85 | 18.30 | 7.47 | 36.06*** | 0.22 | 22.76*** | 0.15 | 61.94*** | 0.33 |
| Knowledge of obesity | 3.70 | 1.58 | 5.80 | 1.90 | 3.53 | 1.41 | 3.78 | 1.33 | 50.72*** | 0.29 | 33.48*** | 0.21 | 54.10*** | 0.30 |
| Implicit measure | ||||||||||||||
| Stigmatizing attitudes (IAT-D) | 0.56 | 0.37 | 0.57 | 0.43 | 0.63 | 0.38 | 0.63 | 0.42 | 0.05 | 0.00 | 0.01 | 0.00 | 0.09 | 0.00 |
AFAT indicates Antifat Attitudes Test (1–5); BAOP, Beliefs About Obese Persons Scale (0–48); Knowledge of obesity (0–10); IAT, Implicit Association Test, D, mean differences of reaction times divided by standard deviations of all reaction times when presenting compatible and incompatible anti-fat pairings.
aUnivariate analysis of variance by Group (EG, CG; between-subjects) with baseline values as covariates.
bRepeated measures analysis of variance of Group (EG, CG; between-subjects) × Time (baseline, post-intervention; within-subjects).
*p < .05
**p < .01
***p < .001