CONCEPT
Metacognitive Illusions
The systematic dissociation between learners' subjective judgments of their own learning (based on fluency) and actual learning outcomes (based on storage strength)—a mismatch that makes self-regulated learning systematically choose the least effective strategies.
Metacognitive illusions are the family of systematic errors by which human beings assess their own cognitive processes. The brain monitors learning through fluency—how easily information processes—and interprets fluency as evidence of learning depth. This interpretation is wrong: fluency correlates with current retrieval strength (temporary) not storage strength (durable). Learners feel most confident after massed practice (which maximizes current retrieval strength) and least confident after spaced practice (which allows retrieval strength to decay)—exactly backwards from what retention tests reveal. Bjork and Bjork's research demonstrated that these illusions persist even when learners are explicitly taught about them: declarative knowledge ('I know fluency is misleading') coexists with the automatic metacognitive processes that continue to use fluency as a learning cue. The practical implication: self-regulated learning, left to optimize by subjective assessment, gravitates toward the least effective strategies available.
In The You On AI Field Guide
The research on metacognitive illusions produced some of Bjork's most uncomfortable findings for educational reform. In studies where students were taught about
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