Studies in social influence III: Majority versus minority influence in a group

This experimental study was aimed at investigating the mechanisms of influence involved in the two functionally opposed phenomena of innovation and conformity. We have been concerned for several years with the former of these two phenomena because of its intrinsic importance and the limited amount of research devoted to it. In the present article we have attempted not only to analyse the position more thoroughly, but also to compare the effects of innovation with those of conformity. In particular, we have endeavoured to show that behavioural style acts as a general source of influence in the two phenomena under consideration, where manifest judgments are concerned. On the other hand, the latent effects of influence may be different in the two cases of innovation and conformity. To investigate these questions, we developed an experimental design consisting of three parts. The first part was intended to study manifest influence on a quasi-physical judgment based on a cultural truism. The second part was aimed at the study of latent modifications in the perceptual-cognitive code as a result of influence. The third, in the form of a postexperimental questionnaire, was intended to provide information about various aspects, including the perception of the agent of influence by subjects. The main function of the experimental manipulations was to vary the minority or majority relationship of the agent of influence within a group, and its behavioural style, consistent or inconsistent. Our main findings indicate that behavioural consistency is the main factor behind the influence exerted by both majority and minority. But whereas, in conformity, influence is limited to modifying manifest judgments, in innovation, it changes the perceptual-cognitive code underlying such judgments.