Growing recognition of the central importance of fostering an in-depth understanding of natural selection has, surprisingly, failed to stimulate work on the development and rigorous evaluation of instruments that measure knowledge of it. We used three different methodological tools, the Conceptual Inventory of Natural Selection (CINS), a modified…

Explores the sources of beliefs about science-technology-society topics and investigates the degree of ambiguity harbored by four different response modes, such as Likert-type, written paragraph, semistructured interview, and empirically developed multiple choice. Finds that mass media have a greater impact than science classes. (Author/YP)