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- Wheatley , Bruce C. 1967 . “The Effects of Four Styles of Leadership Upon Anxiety in Small Groups” . University of Denver . Diss.
- Wood , Roy V. , Bradac , J. James and Yamauchi , Joanne S. 1968 . “The Effects of Status Figure Presence on Group Interaction” . Northwestern University . unpublished manuscript
- Bradac , J. James . 1970 . “The Effects of Exogenous Evaluation Potential Upon Participation and Cohesiveness in Groups” . Northwestern University . Diss.
- Deutsch , Morton . 1949 . “An Experimental Study of the Effects of Cooperation and Competition Upon Group Process” . Human Relations , 2 : 199 – 231 .
Speech Monographs
Volume 40, 1973 - Issue 2