My question when I started reading this article was to wonder what the author meant by 'effective'. It was, of course, grades. He questions "whether there would be a difference between releasing all of the lectures at once ('the Netflix model') or releasing the videos week by week ('the Disney+ model')." In this one course at this one school, "the average grade was less than one percentage point different." Though the results have basically zero statistical validity, the author recommends the Netflix model, "since it's less work to release them all at the beginning." Methodology like that is what makes cognitive science so unique!
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