1. Discussion, Decision, Commitment, and Consensus in "Group Decision'"
2. Volunteering as an avoidance act.
3. Hood, T. C. and Back, K. W. Patterns of self disclosure and the volunteer: The decision to participate in small groups experiments. Paper read at Southern Sociological Society. Atlanta. New York: Academic Press. April 1967 As cited in Rosenthal, R. & Rosnow R. L. (Eds.),Artifact in Behavioral Research.
4. Quantitative motivational differences between volunteers and nonvolunteers for a psychological experiment.