The authors found a wide variation in QRT scores of videos, with many low QRT scores. While videos authored by academic-physicians were of higher quality on average, their quality still varied significantly. Video characteristics and engagement metrics were found to be unreliable surrogate measures of video quality. A lack of unifying grading criteria for video content quality, poor search algorithm optimization, and insufficient peer review or controls on submitted videos likely contributed to the overall poor quality of YouTube videos that could be used for professional medical education.
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Helming et al. (2021) studied this question.
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