and the Stability of Working Relationships/,R/<://<2/-rf V. Wagner 116 Identifying Emergent Leaders from Verbal and Nonverbal Communications/.R. Timothy Stein 125 An Attribution Analysis of the Effect of Communicator Characteristics on Opinion Change: The Case of Communicator Attractiveness//4/Jce H. Eagly and Shelly Chaiken 136 Effects of Embarrassment on Behavior Toward Others/Robert Apsler 145 Conceptual Complexity and Concept Learning of Painting Styles/Ken Hill and Don Kiiiken 154 (Continued on inside back cover)

The concept of reasonable doubt was examined as both an individual and group decision criterion. Previous research indicates that neither criterion has an effect on verdicts. A reexamination of this research suggested that such effects might occur for cases producing maximum disagreement. An experiment was performed in which mock jurors reached individual and group verdicts for such a case. The decision criteria for individuals (judge's definition of reasonable doubt) and groups (assigned decision rule) were varied in a factorial design. As predicted, mock juries assigned a unanimity decision rule were significantly less likely to reach a verdict than juries assigned a majority rule. Minority members of juries assigned a majority decision rule were particularly dissatisfied with group deliberation. Definitional variations in reasonable doubt significantly affected both individual and group verdicts. The effects of the independent variables for the group decision-making process were also examined using a model-fitting approach to Davis' social decision scheme model.

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