Hypothesis awareness as a demand characteristic in laboratory-based eating behaviour research: An experimental study

Demand characteristics are thought to undermine the validity of psychological research, but the extent to which participant awareness of study hypotheses affects laboratory-measured eating behaviour studies has received limited attention. Participants (N = 84) attended two laboratory sessions in which food intake was measured. In session 1 baseline food intake was measured. In session 2 participants were allocated to either a 'hypothesis aware'...