I. BACK, K. , FESTINGER, L. , HYMOVITCH, B. , KELLEY, H. H. , SCHACHTER, S. , and THIBAUT, J." The Methodology of Studying Rumor Transmission."Human Relations, Vol. III, No. 3, 1950, 307-312 .
2.
2. FESTINGER, L." An Exact Test of Significance for Means of Samples Drawn from Populations with an Exponential Frequency Distribution."Psychometrika, I943, 8, I53-i60 .
3.
3. FESTINGER, L." The Significance of Difference between Means without Reference to the Frequency Distribution Function."Psychometrika, 1946, 11, 97-105 .
4.
4. FESTINGER, L. , et al. Theory and Experiment in Social Communication. Report of studies under Office of Naval Research Contract, Research Center for Group Dynamics, Univ. of Michigan . May, I950, 123 PP.
5.
5. FISHER, R. A.Statistical Methods for Research Workers. London: Oliver and Boyd , 1946 (Tenth Edition), 96-97.
6.
6. THIBAUT, J." An Experimental Study of the Cohesiveness of Underprivileged Groups."Human Relations, Vol. III, No. 3, 1950, 25I-278 .
