Group decision-making - Group decisions and information

6 important questions on Group decision-making - Group decisions and information

What is a reason to use groups when making decision?

The group as a whole has more information than any group member individually.

What are process gains?

The group performs better than any member could perform alone.

What is a hidden profile?

The correct solution is initially hidden from group members and can only be detected when group members exchange their unshared information.
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Why was unshared information not discussed in the study of Stasser and Titus (1985)?

Chance. The probability that a particular piece of information is mentioned during discussion is positively related to the number of group members that hold that peice of information.

What are the two reasons why unshared information does not receive as much weight as shared information?

  1. Shared information can be validated by group members other than the one that mentioned it.
  2. People are reluctant to change an initial preference, new unshared information that comes up during discussion implies that this preference is incorrect.

What are 4 ways to counteract biased information-sharing in groups?

  1. Initial preference diversity: preference diversity, even if no member is initially correct, can improve group decisions.
  2. Decision framing: frame the decisional task as a problem to be solved rather than a decision to make.
  3. Leadership: the leader asked more questions and repeated both shared and unshared information more often than the interns or the students > information managers.
  4. Expert roles: everyone has his expertise and that has to be recognized.

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