The process of achieving group uniformity

Citation
N. Kugihara et al., The process of achieving group uniformity, PSYCHOL REP, 83(3), 1998, pp. 755-766
Citations number
15
Categorie Soggetti
Psycology
Journal title
PSYCHOLOGICAL REPORTS
ISSN journal
00332941 → ACNP
Volume
83
Issue
3
Year of publication
1998
Part
1
Pages
755 - 766
Database
ISI
SICI code
0033-2941(199812)83:3<755:TPOAGU>2.0.ZU;2-6
Abstract
The present study examined the effects of group size and percentage of the subjects starting with majority behavior upon the process of achieving beha vioral uniformity. Four groups of 12 and five groups of 24 subjects were fo rmed.:The starting points at the beginning of the experiments were set to 5 0%, 67%, and 83%. Each subject was given a B5 size card having different co lors on the front and the back and showed either side of the cards to other s. Subjects shared the goal of achieving uniformity by selecting one of two color options. Analysis indicated that group size did not affect time to c omplete unanimity and a logistic function was found between the transition probability and the rate of diffusion. According to a Markov model, subject s do not react to the past history of the group. We found that the transiti on probability was dependent upon not only the percentage of individuals at a given moment but also the initial value in the beginning. This means tha t the transition probability was influenced by past history.