Running head: FINANCIAL INCENTIVES AND HEALTH BEHAVIOUR 1 The Goose is (half) Cooked: A Consideration of the Mechanisms and Interpersonal Context is Needed to Elucidate the Effects of Personal Financial Incentives on Health Behaviour

by Martin S. Hagger , David A. Keatley , Derwin C. K. Chan , Nikos L. D. Chatzisarantis , James Dimmock , Ben Jackson , Nikos Ntoumanis