Comparing the efficacy of multimedia modules with traditional textbooks for learning introductory physics content

We compared the efficacy of multimedia learning modules with traditional textbooks for the first few topics of a calculus-based introductory electricity and magnetism course. Students were randomly assigned to three groups. One group received the multimedia learning module presentations, and the other two received the presentations via written text. All students were then tested on their learning immediately following the presentations as well as $2weeks$ later. The students receiving the multimedia learning modules performed significantly better on both tests than the students experiencing the text-based presentations.