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- Vol 2 RE: Chapters 1, 4, 5, 7
expertise reversal effectcognitive load theoryworked examplesredundancy effectadaptive instructionprior knowledgeJournal article Evidence summaryAt a glance
Kalyuga reviews the expertise reversal effect: instructional methods that help novices can become ineffective or harmful as learners acquire domain knowledge. Cognitive load theory explains this change through the interaction between working-memory limits and schemas stored in long-term memory.
Key ideas
Novices lack schemas and therefore benefit from explicit explanations, worked examples, integrated information, and other external guidance. For knowledgeable learners, the same support may duplicate what their schemas already provide. Processing and reconciling redundant guidance then consumes resources without adding useful knowledge, so less guided problem solving can be superior. The review connects this evidence to aptitude–treatment interactions and surveys approaches for adapting instruction to current expertise, including fading worked steps, selecting formats according to prior knowledge, and rapid diagnostic assessment during learning. It emphasizes that expertise is domain- and task-specific rather than a fixed learner trait.
Why it matters
Effective adaptive instruction must therefore monitor changing knowledge and adjust support over time. The central design lesson is that no instructional format is universally best: guidance should be sufficient for the learner’s present needs and withdrawn as internal guidance develops.
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- TE
- Teacher Edition
- PE
- Practice Edition
- RE
- Research Edition
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