States and school districts in the USA have begun to create and implement curriculum to promote elementary students' nascent STEM-related interests and to generate their initial knowledge of careers in those fields. Evaluating the efficacy of such interventions warrants valid and reliable tools, which are not presently available for middle…

The purpose of this study was to develop and validate an online contextualized test for assessing students' understanding of epistemic knowledge of science. In addition, how students' understanding of epistemic knowledge of science interacts with learner factors, including time spent on science learning, interest, self-efficacy, and gender, was…