Durable Benefits of Learning-by-Teaching for Research Question Generation Performance: A Field Experiment

Generating good questions is central to scientific inquiry. How can we improve this skill in classrooms? This field experiment showed that teaching others enhances students' ability to generate higher-order research questions that create new knowledge. Whereas learning-by-teaching often involves delivering face-to-face or video-recorded lectures, we tested its efficient implementation via writing a verbatim (i.e., word-for-word) teaching script, exactly as how one would orate a lecture. In a research and statistical methods course, 199 undergraduates studied statistical concepts by writing verbatim teaching scripts or study notes. One month later, students' long-term learning was assessed on a high-stakes test, whereby they explained the concepts, applied them to design a study to test a given hypothesis, and generated create-level research questions about the concepts. Writing teaching scripts enhanced students' research question generation and concept application more than writing study notes. The teaching advantage for these higher-order outcomes held although both techniques produced comparably high basic understanding when students explained the concepts at test. Further, students displayed greater generative processing, metacognitive monitoring, and social presence when writing teaching scripts than study notes. Learning-by-teaching can be leveraged in an efficient and inexpensive way via writing verbatim teaching scripts to improve meaningful, durable learning in classrooms.