The rank-order effect in group decision making

Article Abstract:

The rank-order decision procedure may provide a means of improving group decision making processes by stimulating group members to discuss important aspects of each alternative solution. Compared to the 'choose the best' procedure, rank-order procedure opens an opportunity for each member to weigh each alternative against the other in terms of unique and common information contained in each alternative. The procedure is also less authoritarian in its intervention, leading to more openness and increasing the chance of choosing the best solution to a problem.

Group Dynamics, Methods, Decision-making, Decision making, Management, Human resource management, Interpersonal relations, Social groups

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Group discussion and first advocacy effects in computer-mediated and face-to-face decision making groups

Article Abstract:

A study was conducted to detect influence by a first group member's advocacy of a position and to assess whether group discussion by computer mail or face-to-face conditions the degree of such influence. First advocacy variables which were tested include assignment of first advocate, discussion before advocacy and mode of communication. Results show that first advocates who listen to early group discussion present decisions close to that of the group's. Computer mail and face-to-face discussion exhibited similar decision making processes.

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Acceptance of uncommon information into group discussion when that information is or is not demonstrable

Article Abstract:

The acceptance of a fact into a group discussion when the fact's existence is or is not demonstrable is investigated. A three-way interaction between demonstrability, familiarity and number of advocates is observed. Results show that a fact known by only one person dominates discussion when it is easily demonstrated and is a familiar topic. An unfamiliar topic leads to improved acceptance of a nondemonstrable one-person fact and involves more facts compared to discussions of a familiar subject.

Information theory

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