Interleaving
Cognitive psychology (Rohrer & Taylor; Schmidt & Bjork) · Various cognitive science research (2000)
Mixing different types of problems or topics within a study session, rather than blocking them, forces the brain to continuously retrieve the appropriate strategy, leading to better learning and transfer.
Core Concepts
The Problem
How to make practice sessions more effective for long-term retention and flexible application.
The Claim
Interleaving improves the ability to discriminate between problem types and strengthens memory through repeated retrieval.
Key Evidence
- •Studies in mathematics, sports, and motor skills show that interleaved practice yields superior long-term performance compared to blocked practice.
- •Interleaving reduces the risk of 'illusion of mastery' during study.
Practical Implication
Should be incorporated into curricula and self-study routines.
Nuance & Limits
Initial performance may feel harder, leading learners to underestimate its benefits; best used once basic concepts are understood.
Source Material
Citation Density
high
Gaps
- ⚠ Optimal degree of mixing; individual differences in responsiveness.
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