Learners overwhelmingly judge blocking more effective than interleaving even when their test performance favors interleaving¶
Claim · All claims
Evidence · 1 study · causalr2·q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? In both contiguous and spaced conditions, roughly two thirds of participants rated blocking as more effective, significantly above chance. → Monica S. Birnbaum 2013
Evidence¶
Monica S. Birnbaum 2013¶
Monica S. Birnbaum, Nate Kornell, Elizabeth Ligon Bjork, & Robert A. Bjork. (2013). Why interleaving enhances inductive learning: The roles of discrimination and retrieval. Memory & Cognition, 41, 392–402. https://doi.org/10.3758/s13421-012-0272-7
q3 · i? · causal · r2
Post-test judgment among the 114 Experiment 2 participants: 65% (37/57) favored blocking in the contiguous condition (z = 2.12, p < .05) and 67% (38/57) in the spaced condition (z = 2.38, p < .05), despite blocking being counterproductive or ineffective. No effect size is printed for this judgment difference.
"In the contiguous condition, 65 % (37/57) of the participants favored blocking. A binomial test using an approximation of the normal distribution showed this ratio to be significantly different from chance (i.e., from 50 %), z 0 2.12, p< .05"
Discussion¶
Related Claims¶
- Self Assessment Accuracy Is Low Without Training — the general claim this finding bears on, with the studies behind it
- Interleaving Improves Discrimination — possibly the same claim (merge candidate)
- Learners Misjudge Spacing Benefits — a broader claim this one bears on
- When trivia questions space out exemplars, spacing and interleaving are subadditive: interleaving beats blocking only with contiguous presentation, and spacing helps blocked but not interleaved study — related
- Inserting trivia questions between interleaved exemplars impairs inductive learning when it disrupts juxtaposition of categories, with total spacing held constant — related
- Interleaving category examples improves inductive category learning for visual and mathematical materials, but not for expository texts or word categories — related
- When exemplars are already interleaved, larger temporal spacing between same-category exemplars yields better inductive learning than smaller spacing — related
- Learners misjudge which learning strategies are effective — related
- Interleaving during concept learning benefits memory of studied items, with effect sizes (Hedges' g) of up to 0.65 — related
- Even when motivated to distinguish and informed that differences matter, learners in Experiment 1 blocked 68% of their study sequence choices — related
- In Experiment 1, students' prospective judgments of learning were higher for blocked studying even though actual test performance was higher for interleaved studying — a narrower finding that bears on this claim
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
metacognitive-illusion-blocking-interleaving |
title |
Learners overwhelmingly judge blocking more effective than interleaving even when their test performance favors interleaving |
description |
Learners overwhelmingly judge blocking more effective than interleaving even when their test performance favors interleaving |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2013 |
generated |
by process:wiki-ingest on 2026-10-15 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — monica-s-birnbaum-2013 |
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