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Zhang, BaoHui; Liu, Xiufeng; Krajcik, Joseph S. – Science Education, 2006
Holding the premise that the development of expertise is a continuous process, this study concerns expert models and modeling processes associated with a modeling tool called Model-It. Five advanced Ph.D. students in environmental engineering and public health used Model-It to create and test models of water quality. Using "think aloud" technique…
Descriptors: Cognitive Processes, Water Quality, Public Health, Models
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Dagher, Zoubeida R.; Boujaoude, Saouma – Science Education, 2005
This study explored how some college students understand the nature of the theory of evolution and how they evaluate its scientific status. We conducted semistructured interviews with 15 college biology seniors in which we asked them to explain why they think evolution assumes the status of a scientific theory, how it compares to other scientific…
Descriptors: Theories, Evolution, Undergraduate Students, Student Reaction