Monetary Incentives in Research and Participation in HIV/STD Risk Reduction Programmes
Sexually Transmitted Infections 1999 February; 75(1): 1-2
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Bentley, J.P.; Thacker, P.G. (2004-06)OBJECTIVES: To determine the effects of risk and payment on subjects' willingness to participate, and to examine how payment influences subjects' potential behaviours and risk evaluations. METHODS: A 3 (level of risk) x ...