Incentive Amounts-Prolific

Studies demonstrate that financial incentive programmes increase smoking cessation. However, there is little guidance on which incentive magnitudes will ensure optimal enrolment and motivation levels. This study investigates current smokers’ perceptions of varying incentive magnitudes to identify whether there is evidence for optimal amount(s), and whether perceptions differ by income group. Studies 1 (N = 56) and 2 (N = 147) were conducted online via Prolific.co. Current smokers were randomly shown multiple hypothetical incentive programmes which differed only in the incentive amount offered. For each programme, smokers rated its appeal, their likelihood of enrolling, and predicted their motivation to quit if enrolled.