Repeated exposure flattens the slope of the forgetting curve over time
Repeated exposure and spaced repetition effectively reduce the rate of memory loss over time, successfully altering the trajectory of the forgetting curve.
The retrieved papers consistently demonstrate that spaced repetition and repeated exposure improve long-term retention and decrease forgetting rates across multiple educational and cognitive domains. There is robust consensus supporting the claim, and no papers present contradictory evidence.
Al Fraidan A, Alharthi T. The impact of technology use on cognitive development and lexical attrition in L1 and L2 among younger students with ADHD: Opportunities and challenges.. 2025. https://doi.org/10.4103/jehp.jehp_100_25
Paper 2 notes that spaced repetition systems reintroduce words at optimal intervals to enhance retention.
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Farah Aulia Rahman, Muhammad Lutfi, Talitha Amalia. Reducing Forgetting Rate in EFL Students Using a Spaced Repetition-Powered Digital Game-Based Learning Application. 2021. https://doi.org/10.35542/osf.io/fcz96
Paper 5 demonstrates that learners following a recommended spaced repetition schedule have significantly lower forgetting rates.
Renjisha R. The Effectiveness of Microlearning and Spaced Repetition in Knowledge Retention Across Different Age Groups: A Comparative Analysis of Cognitive Performance and Memory Consolidation. 2025. https://doi.org/10.63090/ijters/3049.1614.0017
Paper 6 shows that spaced repetition protocols improve knowledge retention across various age groups.
Li X, Rao R, Du Y, Shi X. Redox dopamine-modified chitosan memory films with forgetting behavior.. 2026. https://doi.org/10.1016/j.colsurfb.2026.115677
Paper 8 successfully simulates the spaced repetition learning curve and its antagonistic effect on forgetting.
Vagha K, Choudhari S, Taksande A, Tembhurne J, Vagha J, Vagha S. Implementation of a spaced-repetition approach to enhance undergraduate learning and engagement in paediatrics.. 2025. https://doi.org/10.3389/fmed.2025.1601614
Paper 10 finds that a spaced-repetition approach using digital flashcards significantly improves knowledge retention.
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