title: Vouchers versus Lotteries: What works best in promoting Chlamydia screening? A cluster randomised controlled trial.
abstract: In this cluster randomised trial (N=1060), we tested the impact of financial incentives (£5 voucher vs. £200 lottery) framed as a gain or loss to promote Chlamydia screening in students aged 18-24 years, mimicking the standard outreach approach to student in halls of residence. Compared to the control group (1.5%), the lottery increased screening to 2.8% and the voucher increased screening to 22.8%. Incentives framed as gains were marginally more effective (10.5%) that loss-framed incentives (7.1%). This work fundamentally contributes to the literature by testing the predictive validity of Prospect Theory to change health behaviour in the field.
authors: Department of Social Policy London School of Economics and Political Science.
authors: Claudia
authors: C
authors: Niza
authors: Department of Social Policy London School of Economics and Political Science.
authors: Caroline
authors: C
authors: Rudisill
authors: Department of Social Policy London School of Economics and Political Science.
authors: Paul
authors: P
authors: Dolan