Rereading Is A Low Utility Study Strategy¶

Claim · All claims
Evidence · 2 studies · 1 causal r?, 1 review r3 · q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Rereading — passively restudying text or notes — is one of the most commonly used study strategies, but it produces less durable learning than strategies that require learners to actively reconstruct material. The scope of this claim is rereading as a self-directed study technique, compared against alternative strategies under equivalent study time.

Subclaims¶

q3 i? A systematic review of the rereading literature across dozens of primary studies rates rereading as a low-utility study technique, chiefly because it consistently underperforms alternatives such as elaborative interrogation, self-explanation, and practice testing in head-to-head comparisons. → Dunlosky Et Al 2013

q3 i? Across four experiments using textbook chapters and a Scientific American article under classroom-like conditions, immediate rereading produced little or no improvement over a single reading on multiple-choice, short-answer, and summary assessments, regardless of readers' comprehension ability. → Callender Mcdaniel 2009

Evidence¶

Dunlosky Et Al 2013¶

Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving Students’ Learning With Effective Learning Techniques: Promising Directions From Cognitive and Educational Psychology. Psychological Science in the Public Interest, 14(1), 4–58. doi:10.1177/1529100612453266

q3 · peer-reviewed systematic review · i? · no single effect size reported for the technique-level verdict · n=narrative synthesis of dozens of primary rereading studies (no single sample size) · review · r3

This monograph by five cognitive/educational psychologists reviews ten study techniques, evaluating each against learning conditions, student characteristics, materials, and criterion tasks, and assigns each a utility rating. For rereading, the authors summarize decades of studies (mostly with undergraduates) on massed vs. spaced rereading, and note the effects are fairly robust for free recall but weaker for comprehension and application questions, and largely untested in real course contexts. Critically, in direct comparisons rereading consistently loses to techniques such as elaborative interrogation, self-explanation, and practice testing. They conclude: "Based on the available evidence, we rate rereading as having low utility... The relative disadvantage of rereading to other techniques is the largest strike against rereading and is the factor that weighed most heavily in our decision to assign it a rating of low utility."

Callender Mcdaniel 2009¶

Callender, A. A., & McDaniel, M. A. (2009). The limited benefits of rereading educational texts. Contemporary Educational Psychology, 34(1), 30–41. doi:10.1016/j.cedpsych.2008.07.001

q3 · peer-reviewed experiment (four experiments) · i? · no standardized effect size reported in the abstract · n=four experiments; per-experiment participant n not given in the abstract · causal · r?

Undergraduates read educational texts (textbook chapters or a Scientific American article) under intentional-learning instructions, comparing a single reading against immediate rereading, then completed classroom-like assessments (multiple choice, short answer, and text summaries) across four experiments. Rereading failed to significantly improve performance on most measures, and this held regardless of participants' reading-comprehension ability. As the authors put it: "With only several exceptions, rereading did not significantly increase performance on the assessments."

Discussion¶

Why rereading feels effective but underperforms. Rereading creates a familiarity with the material that learners easily mistake for mastery — the material reads smoothly on a second pass, so it feels well learned. This is a classic metacomprehension failure: fluency during restudy is used as a proxy for learning, but familiarity is not the same as the ability to retrieve and use information later. Strategies that force retrieval or transformation of the material (self-testing, explaining, summarizing from memory) align the study activity with what a test or application demands — the principle of transfer-appropriate processing — which is why they consistently outperform restudy at equal time on task.

Moderators and boundary conditions. The low-utility verdict is strongest for massed rereading — reading the same text twice in immediate succession — which adds little beyond the first reading. Spaced rereading (with a delay between readings) is somewhat better than massed rereading, consistent with spacing effects generally, and a single careful reading combined with other strategies may be a reasonable component of a study routine. Rereading may also serve a legitimate initial-encoding function for complex or unfamiliar material before more demanding strategies are applied — a first pass builds the base that retrieval practice then strengthens. The claim should therefore be read as a comparison against active alternatives, not as "rereading has zero value under all conditions."

Constraints on the claim. The low-utility verdict weakens or reverses under several conditions. When total study time is not held constant, a second reading can outperform a single briefer active episode [-M], so comparisons must be time-matched to be meaningful. For learners with very weak background knowledge or reading skill, a restudy pass may support comprehension enough that later active strategies become viable [~M] — rereading is a poor primary strategy but not necessarily a harmful supplementary one. And because rereading's subjective fluency inflates learners' confidence, interventions that merely warn students against it often fail [~M]: the illusion of mastery persists unless a concrete replacement strategy is supplied.

Practical implication. Because rereading is cheap, familiar, and feels productive, learners default to it. Simply telling students rereading is ineffective rarely changes behavior; replacing it with a concrete alternative — e.g., annotating during a first reading, or closed-book retrieval and self-explanation afterward — is more effective than prohibition alone. Framing the first reading as preparation for active study, rather than as study itself, helps learners budget their time accordingly. Instructors can support this by building low-stakes quizzing or retrieval opportunities into courses, which displaces rereading without requiring students to change habits on their own.

Open questions. The review recorded above reports no single effect size for rereading, and the experiment was read as an abstract. Whether spaced rather than immediate rereading changes the verdict is not settled by the evidence recorded here.

Related Claims¶

• Learners underuse effective learning strategies such as spacing and retrieval practice — the general claim this finding bears on, with the studies behind it

• Annotating improves learning. — active annotation during reading is a higher-utility alternative to passive restudy

• Active learning improves exam performance. — active engagement during study generally outperforms passive exposure
• Retrieval practice improves retention. — self-testing is the best-documented high-utility replacement for rereading
• Chunking reduces working memory load. — organizing material into chunks during a first reading can make subsequent study more efficient
• Elaborative Interrogation Improves Learning — related
• Elaborative interrogation instructions produce better recall and recognition of science facts than reading-for-understanding instructions — related
• Elaborative interrogation increased perceived difficulty and time spent with the lesson — related
• Learners misjudge which learning strategies are effective — related
• First-cycle underperformance was attributed to low-quality student-generated questions that failed to represent journal article patterns — related
• Rereading is less effective than retrieval practice — related
• In a Terracotta study across classes, retrieval practice review outperformed restudy review on subsequent exams — related
• Retrieval practice strengthens memory and produces stronger, more enduring learning — related
• Quizzing outperforms no/filler activity, fewer-question testing and restudying, with a larger advantage over no/filler activity (low reexposure) than over restudying (high reexposure); against other elaborative strategies its advantage is small and not significant. — related
• Elaborative interrogation improved true/false test performance in an introductory biology course context — related
• Summarization, highlighting, the keyword mnemonic, imagery for text, and rereading receive low utility assessments — a broader claim this one bears on
• Practice testing and distributed practice receive high utility assessments because their benefits generalize widely across learners, tasks, and educational contexts — related
• Offering a monetary incentive in both test and study conditions strengthens the case that testing has a true learning advantage over motivated restudy — related
• Rereading significantly improves metacomprehension monitoring accuracy relative to reading once (Experiment 1) — reports the opposite
• A self-explanation instruction during rereading improves monitoring accuracy for all readers above mere rereading (Experiment 2) — related
• Questioning-with-training produced higher posttest scores than read-reread study (Experiment 2) — a narrower finding that bears on this claim
• On a one-week delayed test, multiple text reading and rereading both outperform single reading, but on a one-day delayed test the differences are non-significant — related
• Retrieval practice conditions produced significantly higher cognitive load than rereading — related
• Restudy of an evidence summary alone produces no measurable skill improvement between simulator attempts — a narrower finding that bears on this claim
• Exposure to a video model improves trainee teachers’ skill in using questioning for retrieval by 0.80 SD relative to restudying the evidence summary — related
• Five of seven situation-model interventions significantly improved relative metacomprehension accuracy, concept mapping only marginally (p = .097), and self-explaining not significantly — related
• Learners tend to feel restudying confers more learning than being tested even though the opposite is true, per the review — related
• Highlighting shows low utility for improving learning outcomes — related
• The advantage of recitation over rereading is greater the less connected the learning material (Kühn 1914; Gates 1917) — related
• Ineffective learning strategies show substantially higher habit strength than effective strategies in a proof-of-concept survey — a narrower finding that bears on this claim