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Retrieval Practice (The Testing Effect): Active Recall Trumps Passive Review
research · Groundbreaking work by Henry Roediger and Jeffrey Karpicke, among others. (2006)
Confidence: High
Retrieval practice, also known as the testing effect, is the finding that actively recalling information strengthens memory more than passive study methods like re-reading or highlighting.
Core Concepts
The Problem
Re-reading creates an illusion of mastery, but learning doesn't stick.
The Claim
The effort of retrieval consolidates information into long-term memory.
Key Evidence
- •Numerous lab and classroom studies show that testing after learning leads to 50-200% better retention than re-reading. The benefit is enhanced by spaced repetition.
Practical Implication
Learners should replace passive review with self-quizzing, flashcards, and low-stakes testing.
Nuance & Limits
Retrieval practice works best when feedback is provided; the process of struggling may temporarily feel harder but produces deeper learning.
Source Material
■Make It Stick: The Science of Successful Learning — Peter C. Brown, Henry L. Roediger III, Mark A. McDaniel (2014)
Citation Density
Extensive
Gaps
- ⚠ Optimal retrieval schedules and the role of retrieval in complex skill acquisition are still active research areas.
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