Useful review. One caution I have while reading posts like this, is that the author does not distinguish between the testing effect, and the spacing effect. Wh

Useful review. One caution I have while reading posts like this, is that the author does not distinguish between the testing effect, and the spacing effect. While the value of testing (and especially spaced testing) is well established [1], the value of spaced restudy (e.g. you see both the question and answer together) is less established (but see this Bjork paper [2], which argues there is some benefit to spaced restudy). [1]: https://journals.sagepub.com/doi/abs/10.1177/1745691617718873 https://journals.sagepub.com/doi/abs/10.1177/174569161771887... [2]: https://journals.sagepub.com/doi/10.1177/0956797615617778 https://journals.sagepub.com/doi/10.1177/0956797615617778