In this chapter we explore how people build new theories in the context of collaborative scientific thinking. As illustrated by many of the chapters in this volume, our default notion of "scientific thinking" has changed from that of the lone scientist or student toiling away on a magnum opus or in the laboratory, to that of people working as part of collaborative groups who negotiate goals for the task, co-construct knowledge, and benefit from the diverse prior knowledge that each collaborator brings to the table. In some ways, conceptualizing scientific thinking as fundamentally
The impact of two science enrichment programs on the science attitudes of 330 gifted high school students was evaluated using a multimethod, multiperspective approach that provided a more comprehensive evaluation of program impact on science attitudes than did previous assessments of science programs. Although pre-post comparisons did not indicate positive impact on science attitudes, other measures provided strong evidence of program effectiveness. Program benefits were greater among girls, those who had more supportive families and teachers, and those who entered the programs with greater