We use data from a randomized controlled trial of a middle school science intervention to explore the causal mechanisms by which the intervention produced previously documented gains in student achievement. Our study finds that implementation fidelity, operationalized as a measure of the frequency of implementation of the cognitive science…

The present study is based on the empathizing-systemizing (E-S) theory of cognitive science. It was hypothesized that the influence of students' gender on their motivation to learn science is often overestimated in the research literature and that cognitive style is more important for motivation than students' gender. By using structural equation…

With the overarching goal of improving scientific literacy for all, the emphasis on science achievement had been expanding all over the world. In this study, I examined the total, direct and indirect effects of inquiry-based science instruction on U. S. 8th graders' science achievement through attitudes toward science. I also examined the…