Design
RECRUITMENT
This study used a 2 × 2 between-subjects design. Upon recruitment, participants were randomly assigned to one of four experimental conditions: calorie labels and value pricing; calorie labels and proportional pricing; no calorie labels and value pricing; no calorie labels and proportional pricing. Participants were recruited via the online platform Prolific before being provided with a web link to complete all aspects of the study procedure on Inquisit 6. Randomisation with 1:1:1:1 allocation was performed using the ‘<batch>’ and ‘/subjects’ functions in Inquisit 6.