The study of negotiating groups, whether distributive between competing parties (i.e., "win-lose") or integrative between essentially friendly parties from the same organization (i.e., "win-win"), remains important. While much previous research in this area has focused on key analytical issues...

A laboratory experiment was used to evaluate the effects of anonymity and evaluative tone on computer-mediated groups using a group decision support system to perform an idea-generation task. Evaluative tone was manipulated through a confederate group member who entered supportive or critical...