Dear Colleagues:

Daniel Balliet (VU University, Amsterdam) and I are conducting a meta-analytic review of the literature on "altruist detection."

We are interested in studies (including unpublished or forthcoming work) that measure the extent to which people can predict others' altruism or prosociality, broadly defined (including generosity, cooperation in social dilemmas, contributions to public goods, etc.). Specifically, we're interested in studies that have measured (or manipulated) a target actor's prosociality (level of helping, altruism, trustworthiness, cooperation, or public good contributions) and measured an observer's predictions or expectations of the target actor's prosociality.

We would need information on the statistical relation between the target's actual behavior or disposition, and the observer's prediction for that behavior or disposition (e.g., r, F value, or t value, along with sample size) and some information about the study design (e.g., type of measure, relationship (if any) between observer and target, length of observer's exposure to target, etc.).

If you have any data that may satisfy the above conditions or have any questions, please let me know.

Sincerely,

Brent Simpson
Department of Sociology
University of South Carolina
bts@sc.edu

Or

Daniel Balliet

Social and Organizational Psychology Department

VU University Amsterdam

d.p.balliet@vu.nl

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