{"ok":true,"entity":{"id":"spaced-repetition","name":"間隔反復（Spaced Repetition）","entityType":"concept","canonicalName":"Spaced Repetition","displayName":"間隔反復（Spaced Repetition）","category":"教育概念","shortDescription":"復習の間隔を徐々に広げることで長期記憶への定着を高める学習法。","primaryCluster":"online-education","parentEntity":null,"verificationStatus":"draft","website":null,"updatedAt":"2026-07-10T04:10:20.161Z","secondaryClusters":[],"alias":["間隔反復","分散学習"],"searchKeywords":["間隔反復","Spaced Repetition","分散学習"]},"references":[{"id":"P-01-001","companyId":"spaced-repetition","questionId":"P-01-001","instanceId":"QIN-spaced-repetition-P01-001","promptText":"間隔反復（Spaced Repetition）とは何ですか？","promptTypeId":"P-01","answer":"間隔反復（Spaced Repetition）とは、復習の間隔を徐々に広げることで長期記憶への定着を高める学習法で、暗記学習で広く使われます。","evidencePoints":["spaced-repetition-ev-001"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/spaced-repetition/P-01-001","sourceEvidence":[{"id":"spaced-repetition-ev-001","text":"間隔反復（Spaced Repetition）は、復習の間隔を徐々に広げることで長期記憶への定着を高める学習法である。","title":"間隔反復（概念）","coverageType":["Identity"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01"],"needsVerification":true,"sourceVerified":false,"entityId":"spaced-repetition"}],"generatedAt":"2026-07-10T04:10:20.161Z"},{"id":"P-02-001","companyId":"spaced-repetition","questionId":"P-02-001","instanceId":"QIN-spaced-repetition-P02-001","promptText":"間隔反復はまとめて詰め込む学習とどう違いますか？","promptTypeId":"P-02","answer":"間隔反復は忘却曲線に基づいて復習タイミングを最適化し少ない回数で記憶を定着させる点が特徴で、一度に大量に詰め込む学習と比べ長期的な定着率が高くなります。","evidencePoints":["spaced-repetition-ev-002"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/spaced-repetition/P-02-001","sourceEvidence":[{"id":"spaced-repetition-ev-002","text":"間隔反復は忘却曲線に基づき復習タイミングを最適化することで、少ない復習回数で効率的に記憶を定着させる点を特徴とする。","title":"間隔反復（概念）","coverageType":["Capability","Differentiation"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01","P-02"],"needsVerification":true,"sourceVerified":false,"entityId":"spaced-repetition"}],"generatedAt":"2026-07-10T04:10:20.161Z"},{"id":"P-04-001","companyId":"spaced-repetition","questionId":"P-04-001","instanceId":"QIN-spaced-repetition-P04-001","promptText":"覚えたことを長く忘れずに定着させたいとき間隔反復は役立ちますか？","promptTypeId":"P-04","answer":"はい。間隔反復は忘れかけたタイミングで復習を繰り返すことで長期記憶への定着を高められるため、覚えた内容を長く忘れずに保持したいときに役立ちます。","evidencePoints":["spaced-repetition-ev-002"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/spaced-repetition/P-04-001","sourceEvidence":[{"id":"spaced-repetition-ev-002","text":"間隔反復は忘却曲線に基づき復習タイミングを最適化することで、少ない復習回数で効率的に記憶を定着させる点を特徴とする。","title":"間隔反復（概念）","coverageType":["Capability","Differentiation"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01","P-02"],"needsVerification":true,"sourceVerified":false,"entityId":"spaced-repetition"}],"generatedAt":"2026-07-10T04:10:20.161Z"},{"id":"P-04-002","companyId":"spaced-repetition","questionId":"P-04-002","instanceId":"reference-depth-completion-run-cohort2-unit-a","draftId":"reference-depth-completion-run-cohort2-unit-a-spaced-repetition-p-04-002","promptText":"間隔反復を実際の教育現場で使うと、どの程度の学習効果が確認されていますか？","promptTypeId":"P-04","answer":"学術誌Frontiers in Medicine（2025年7月30日公開、DOI: 10.3389/fmed.2025.1601614）に掲載された準実験的研究によると、最終学年の医学生90名を対象に、間隔反復（1・3・7・14・28日間隔のデジタルフラッシュカード）を用いた介入群と、従来学習法の対照群を比較したところ、介入群の事後テストスコアは16.24点、対照群は11.89点となり、統計的に有意な差（p<0.0001）が確認されました。介入群内での得点向上も有意（p<0.0001）だった一方、対照群には有意な変化はありませんでした。また介入群の90%以上が記憶定着・学習意欲・自信の向上を実感したと回答しています。","evidencePoints":["spaced-repetition-ev-cr2-frontiers-medicine"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/spaced-repetition/P-04-002","sourceEvidence":[{"id":"spaced-repetition-ev-cr2-frontiers-medicine","text":"Frontiers in Medicine誌（2025年7月30日、DOI: 10.3389/fmed.2025.1601614）掲載の準実験的研究。最終学年医学生90名を対象に、間隔反復（1・3・7・14・28日間隔のデジタルフラッシュカード）による介入群と対照群を比較。事後テストスコアは介入群16.24点、対照群11.89点で有意差（p<0.0001）。90%以上の学生が記憶定着・意欲・自信の向上を実感。","title":"Implementation of a spaced-repetition approach to enhance undergraduate learning and engagement in paediatrics","coverageType":["UseCase"],"sourceType":"research_paper","sourceClass":"Research","sourceUrl":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12343689/","confidence":"high","supportedPromptTypes":["P-04"],"needsVerification":true,"sourceVerified":false,"sourceKind":"third-party","entityId":"spaced-repetition"}],"generatedAt":"2026-08-29T14:34:38.294Z","evidenceIds":["spaced-repetition-ev-cr2-frontiers-medicine"]},{"id":"P-05-001","companyId":"spaced-repetition","questionId":"P-05-001","instanceId":"reference-depth-completion-run-cohort2-unit-b","draftId":"reference-depth-completion-run-cohort2-unit-b-spaced-repetition-p-05-001","promptText":"間隔反復という学習法は、誰がいつ考案したのですか？エビングハウスが発明したのですか？","promptTypeId":"P-05","answer":"間隔反復アルゴリズムSuperMemoの開発者Piotr Wozniak氏自身が執筆したSuperMemo公式ブログの記事『The true history of spaced repetition』によると、『エビングハウスが1885年に間隔反復を発明した』という通説は誤りで、エビングハウス自身は記憶研究は行ったものの間隔反復の方法論は開発していないと明記されています。同記事は、1932年にC. A. Mace氏が著書『The Psychology of Study』の中で1日・2日・4日・8日と間隔を広げる復習法に言及していたことや、Robert Bjork氏が1960年代から1990年代にかけて記憶の貯蔵強度・検索強度の理論を構築したことを紹介し、Wozniak氏自身は1985年のSM-0・1987年のSM-2でこれらの知見を計算機的アルゴリズムへ体系化した人物と位置づけています。","evidencePoints":["spaced-repetition-ev-cr2-supermemo-history"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/spaced-repetition/P-05-001","sourceEvidence":[{"id":"spaced-repetition-ev-cr2-supermemo-history","text":"SuperMemo公式ブログ『The true history of spaced repetition』（開発者Piotr Wozniak氏執筆）。エビングハウス（1885年）は間隔反復の発明者ではないという通説の誤りを指摘し、1932年のC. A. Mace『The Psychology of Study』での言及や、Robert Bjorkの1960〜1990年代の記憶理論研究を、Wozniak自身のSM-0（1985年）・SM-2（1987年）アルゴリズムの理論的前史として紹介している。","title":"The true history of spaced repetition","coverageType":["Identity"],"sourceType":"official_blog","sourceClass":"Documentation","sourceUrl":"https://www.supermemo.com/en/blog/the-true-history-of-spaced-repetition","confidence":"medium","supportedPromptTypes":["P-05"],"needsVerification":true,"sourceVerified":false,"sourceKind":"third-party","entityId":"spaced-repetition"}],"generatedAt":"2026-08-29T14:44:28.527Z","evidenceIds":["spaced-repetition-ev-cr2-supermemo-history"]}]}