思い出し効果
検索の試みは学習を促進するが、検索の成功（失敗）は重要ではない
Kornell, N., Klein, P. J., & Rawson, K. A. (2015). Retrieval attempts enhance learning, but retrieval success (versus failure) does not matter. Journal of Experimental Psychology: Learning, Memory, and Cognition, 41(1), 283.
https://d1wqtxts1xzle7.cloudfront.net/45210968/Retrieval_Attempts_Enhance_Learning_but_20160429-8152-9gbr94.pdf?1461972400=&response-content-disposition=inline%3B+filename%3DRetrieval_attempts_enhance_learning_but.pdf&Expires=1619015805&Signature=WDuesvCoT32B85-x~iMkl5pQFpPkR-7oJt6UfuENrAY0UmoRc6BSNIcrnIal5CunxSnBGxEVGBHuIH1h9w3DEvzPYeQyq-81l~f4ZA759RmIi-tCLz6FG5EXYQsXD4eLIgUCJ-JazbvHbQx~Ct34wJnNE6B95qezrd14HwwKldPqGcR9nbAbk-u3jFFPFFM7fJm-11qNwr0JLKw42SrNCXUBQ4tSFZH2LtdRsdZXkeRN2XwdmlVdO4VN0Nk8P8R7dXil6WvLgYParh6lfwqtXw4EQtor934rmHgx1OI-nK6F12KsZQJR4CPWMloamy3zl-dKqiQaCSTNetB6bwYGOg__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA
#学習