This article is partly based on a Diplomthesis by the second author entitled Effekte von übereinstimmng und Nicht-übereinstirmmung in Gruppen auf Gedächtnisleisiung und Skalengebrauch.
Effects of agreement and disagreement in groups on recognition memory performance and confidence†
Article first published online: 22 FEB 2006
Copyright © 1972 John Wiley & Sons, Ltd
European Journal of Social Psychology
Volume 2, Issue 2, pages 109–127, April/June 1972
How to Cite
Upmeyer, A. and Schreiber, W. K. (1972), Effects of agreement and disagreement in groups on recognition memory performance and confidence. Eur. J. Soc. Psychol., 2: 109–127. doi: 10.1002/ejsp.2420020202
We are grateful to Mary Madden, Pauline Sadler and Jennifer S. Sentance for their cooperation on the English translation.
- Issue published online: 22 FEB 2006
- Article first published online: 22 FEB 2006
- Deutsche Forschungsgemeinschaft
Three dependent variables, derived from an extended Signal-Detection paradigma, were used in each of 3 experiments: memory performance, confidence-level, and response-bias. Each memory item was first judged by S and then fictitiously by 2 confederates providing different degrees of agreement and disagreement. As compared to agreement moderate disagreement yielded both better recognition performance and, if S's judgements were false, less confidence. Strong disagreement failed to repeat these findings. Balanced agreement/disagreement raised the level of both performance and confidence relative to a situation without information from the group. In all the experiments correct decisions yielded higher confidence than errors. Festinger's theory of social comparison processes accounts for all results in performance, but for explaining the confidence shifts assumptions on ‘internal cues’ should also be incorporated. The response-bias was not affected by social treatment differences, thus supporting the view of some Signal-Detection theorists. Proposals towards a general theory of stimulus processing in social context are outlined and some of its consequences are discussed by taking as examples some conformity experiments.