Increasing the playback speed of video lectures is popular amongst students as a time saving strategy, but does this negatively impact test performance? Here, we conducted a meta-analysis to examine the effect of increasing video lecture playback speed on content test performance. A meta-regression with robust variance estimation was used to…

The instructor's eye gaze can serve as an important social cue in video lectures. The current study used two sets of three-level meta-analyses to explore the effects of the instructor's guided gaze or the instructor's direct gaze on learning outcomes, fixation time, perception of parasocial interaction, and cognitive load. A total of eight…