@article{lopes2007,
	title = {Social Validation of Everyday Knowledge: Heterogeneity and Consensus
	Functionality},
	author = {Diniz Lopes and Jorge Vala and Leonel Garcia-Marques},
	journal = {Group Dynamics: Theory, Research, \& Practice},
	note = {Article},
	number = {3},
	pages = {223-239},
	volume = {11},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/22221f3c8e54ec0bf17a3a70964cfa3d6/group_performance},
	description = {Literatur Regula},
	abstract = {This article presents evidence supporting the idea that laypeople
	use specific types of informational cues about the composition of
	groups to derive and attribute validity to the knowledge conveyed
	by these groups. A pilot study and two experimental studies analyzed
	the role of consensus and heterogeneity information when participants
	attribute validity to the positions of opposing groups. We predicted
	that consensus information is moderated by heterogeneity information.
	When two groups are described as equally consensual, greater validity
	is attributed to the more heterogeneous group, while when one group
	is described as more consensual than the other heterogeneity information
	will not contribute to the validation of groups' opinions. Our studies
	support this prediction in different scenarios and with different
	manipulations of groups' composition in terms of their internal heterogeneity.
	These findings are discussed in the context of the role played by
	social metacognitive beliefs in everyday knowledge validation., (C)
	2007 Educational Publishing Foundation},
	language = {english},
	keywords = {Article. PsycARTICLES. }
}