This special issue of GPIR is a tribute to the many contributions to the scientific study of group processes made by James H. Davis, who died on November 16, 2010. In this brief introductory piece, we will provide a bit of background on Jim’s life and work, describe his characteristic method of inquiry, which we might term the Davisonian approach, and preview the papers in this issue, each of which illustrate aspects of that Davisonian approach and make an original contribution to our understanding of group behavior.
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