References
- Bales , R. F. 1953 . “ The equilibrium problem in small groups ” . In Working Papers in the Theory of Action , Edited by: Parsons , T. , Bales , R. F. and Shils , E. A. 111 – 161 . Glencoe, Ill. : Free Press .
- Bales , R. F. 1958 . “ Task roles and social roles in problem solving groups ” . In Readings in Social Psychology () , 3rd ed. , Edited by: Maccoby , E. E. , Newcomb , T. M. and Hartley , E. L. 437 – 447 . New York : Holt .
- Festinger , L. 1954 . A theory of social comparison processes . Hum. Relat. , 7 : 117 – 140 .
- Gibb , C. 1954 . “ Leadership ” . In Handbook of Social Psychology , Edited by: Lindzey , G. Vol. 2 , Cambridge, Mass. : Addison-Wesley .
- Heider , F. 1958 . The Psychology of Interpersonal Relations , New York : Wiley .
- Pepinsky , P. N. 1959 . Originality in group productivity: 1. Productive independence in three natural situations , Columbus, Ohio : The Ohio State University Research Foundation . DNR 495 (15) (NR 170–396)
- Willerman , B. , Aronson , E. and Floyd , J. The effect of a pratfall on increasing interpersonal attractiveness , Minneapolis, Minnesota : University of Minnesota . Unpublished manuscript, undated.8
- Winer , B. J. 1962 . Statistical Principles in Experimental Design , New York : McGraw-Hill .