H1) Reduction of unhealthy items and the increase in healthy items’ valuation
For H1, based on data from an ongoing Registered Report in our group using an intervention with similar tasks and for non-drink food itemsFor H1a and H1b, using the same parameters as H1), 106 participants per group (212 in total) would be necessary to detect a 2 × 2 within-between ANOVA interaction 95% of the time.