Grants peer review is a family of ex ante methods used by federal agencies to select research
proposalsforfunding. This article draws on Chubin and Hackett's 1990 book, Peerless Science:
Peer Review and U.S. Science Policy, to examine both the assumptions and theory underlying
peer review as an evaluation methodology and the issues that arise in the operation of peer-based
systems at the National Science Foundation (NSF) and the National Institutes of Health (NIH).
The article discusses criticisms of peer review, the various criteria that agencies must balance
in interpreting evaluations of expert peers, and outstanding issues to be addressed in the
refinement and reform of peer review systems. The article concludes with suggestions on how
to redress the shortcomings of peer review in decision making, especially the allocation of scarce
public monies.