https://abhiraj.pages.dev/tags/edtech/Recent content in EdTech on Abhiraj BibharHugoenThu, 01 Sep 2022 00:00:00 +0000https://abhiraj.pages.dev/publications/cognitive-load-multimodal-tutoring/Thu, 01 Sep 2022 00:00:00 +0000https://abhiraj.pages.dev/publications/cognitive-load-multimodal-tutoring/<h2 id="abstract">Abstract</h2> <p>Multimodal tutoring systems that combine text, audio, and visual explanation can improve learning outcomes, but they can also increase extraneous cognitive load if poorly designed. Across three classroom studies with a combined 240 students, we measure cognitive load using dual-task response times and find that adaptive modality selection — choosing which modality to emphasize based on a learner&rsquo;s real-time performance — reduces extraneous load without harming learning gains.</p>