From the actual study: >We also compared learning outcomes after watching videos once at 1x or twice at 2x speed. There was not an advantage to watching twice

From the actual study: >We also compared learning outcomes after watching videos once at 1x or twice at 2x speed. There was not an advantage to watching twice at 2x speed but if participants watched the video again at 2x speed immediately before the test, compared with watching once at 1x a week before the test, comprehension improved. https://onlinelibrary.wiley.com/doi/10.1002/acp.3899?af=R https://onlinelibrary.wiley.com/doi/10.1002/acp.3899?af=R Seems like an odd comparison to make, watching a video one week before a test versus twice immediately before the test.