Sharps, D., & Schroeder, J. (2019). The preference for distributed helping. Journal of Personality and Social Psychology, 117, 954-977. [APA PsycNet Link]
Short Summary: This paper investigates the psychology underlying how people decide to allocate help (e.g., donations) among multiple needy requesters, and documents a preference for distribution (allocating help to multiple requesters) compared to concentration (allocating help to a single requester) (9 experiments).
Data and Materials, Pre-registration (Exp. 2), Pre-registration (Exp. 3), Pre-registration (Exp. 4), Pre-registration (Exp. 5a), Pre-registration (Exp. 5b)
See Dr. Juliana Schroeder talk about this Distributed Helping paper here →