Groups weight outside information less than individuals do, although they shouldn't: response to Schultze, Mojzisch, and Schulz-Hardt (2013).

Groups weight outside information less than individuals do because they should: response to Minson and Mueller (2012).

Combined Effects of Knowledge About Others' Opinions and Anticipation of Group Discussion on Confirmatory Information Search

Biased information search in homogeneous groups: confidence as a moderator for the effect of anticipated task requirements.

When searching for information, groups that are homogeneous regarding their members' prediscussion decision preferences show a strong bias for information that supports rather than conflicts with the prevailing opinion (confirmation bias). The present research examined whether homogeneous groups blindly search for information confirming their beliefs irrespective of the anticipated task or whet...

The consistency principle in interpersonal communication: consequences of preference confirmation and disconfirmation in collective decision making.

Interpersonal cognitive consistency is a driving force in group behavior. In this article, we propose a new model of interpersonal cognitive consistency in collective decision making. Building on ideas from the mutual enhancement model (Wittenbaum, Hubbell, & Zuckerman, 1999), we argue that group members evaluate one another more positively when they mention information confirming each other's ...

Beyond group-level explanations for the failure of groups to solve hidden profiles: The individual preference effect revisited

The individual preference effect supplements the predominant group-level explanations for the failure of groups to solve hidden profiles. Even in the absence of dysfunctional group-level processes, group members tend to stick to their suboptimal initial decision preferences due to preference-consistent evaluation of information. However, previous experiments demonstrating this effect retained t...