Andrews, F.M. (1963) "The revised multiple classification analysis program."University of Michigan Survey Research Center. (mimeo)
2.
Asch, S.E. (1952) Social Psychology. Englewood-Cliffs, N.J.: Prentice-Hall.
3.
Ayllon, T. and N. Azrin (1968) The Token Economy: A Motivational System for Therapy and Rehabilitation. New York: Appleton-Century-Crofts .
4.
Bachrach, A.J., D. K. Candland, and J. T. Gibson (1961) "Group reinforcement of individual response experiments in verbal behavior," pp. 258-285 in I. A. Berg and B. M. Bass (eds.) Conformity and Deviation. New York: Harper.
5.
Cohen, H.L. and J. Filipczak (1971) A New Learning Environment. San Francisco: Jossey-Bass.
6.
Deutsch, M. and H. B. Gerard (1960) "A study of normative and informational social influence," pp. 201-213 in D. Cartwright and A. Zander (eds.) Group Dynamics: Research and Theory. Evanston, Ill.: Row Peterson.
7.
Freedman, R. and L. Coombs (1966) "Childspacing and family economic position."Amer. Soc. Rev. 31 (October). 631-648.
8.
French, J.R.P., Jr. (1953) "Experiments in field settings," pp. 98-136 in L. Festinger and D. Katz (eds.) Research Methods in the Social Sciences. New York: Dryden.
9.
Gaertner, S. and L. Bickman (1971) "Effects of race on the elicitation of helping behavior: the wrong number technique."J. of Personality and Social Psychology20 (November): 218-222.
10.
Hare, A.P. (1953) "Small group discussion with participatory and supervisory leadership."J. of Abnormal and Social Psychology48: 273-275.
11.
Kelman, H. (1968) A Time to Speak: On Human Values and Social Research . San Francisco: Jossey-Bass.
12.
——— (1958) "Compliance, identification, and internalization: three processes of attitude change."J. of Conflict Resolution2: 51-60.
13.
Piliavin, I., M. Rodin, and J. A. Piliavin (1969) "Good Samaritanism: an underground phenomenon?"J. of Personality and Social Psychology13, 4: 289-299.
14.
ROSENTHAL, R. and R. L. ROSNOW [eds.] (1969) Artifact in Behavioral Research. New York: Academic.
15.
Thomas, E.J. (1960) "Field experiments and demonstrations," pp. 273-298 in N. A. Polansky (ed.) Social Work Research. Chicago: Univ. of Chicago Press.
16.
Wodarski, J.S. (1971) "Effects of individual and group contingencies on arithmetic performance."Presented at the Annual Meeting of the American Educational Research Association, New York.