Interteaching (IT) has demonstrated more effective and durable learning than traditional lecture-style teaching. Whereas IT's effectiveness has been established in traditional face-to-face courses, there is a need to extend the evaluation of IT to increasingly common course delivery modalities such as online courses. The purpose of the present study was to compare IT and traditional online course delivery across two sections of the same graduate-level course. IT was adapted by having students form pairs to video chat synchronously about comprehension questions, submit a teaching record, and then listen to the instructor's recorded follow-up lecture to address the questions from the paired discussion. Results showed that students in the IT section performed better on average on quizzes and most assignments.