Cited by 838EFL/ESL Teaching and LearningSecond Language Acquisition and LearningStudent Assessment and Feedback

The DOI matches its Crossref record, with a small difference in title or year; 98 of the 98 references it cites were found in a registry or an index; 4 of the 27 sources its claims cite were checked for support.

ORAL FEEDBACK IN CLASSROOM SLA: A Meta-Analysis

Open access
Lyster, Roy, Saito, Kazuya·2010·Studies in Second Language Acquisition

Abstract

To investigate the pedagogical effectiveness of oral corrective feedback (CF) on target language development, we conducted a meta-analysis that focused exclusively on 15 classroom-based studies ( N = 827). The analysis was designed to investigate whether CF was effective in classroom settings and, if so, whether its effectiveness varied according to (a) types of CF, (b) types and timing of outcome measures, (c) instructional setting (second vs. foreign language classroom), (d) treatment length, and (e) learners’ age. Results revealed that CF had significant and durable effects on target language development. The effects were larger for prompts than recasts and most apparent in measures that elicit free constructed responses. Whereas instructional setting was not identified as a contributing factor to CF effectiveness, effects of long treatments were larger than those of short-to-medium treatments but not distinguishable from those of brief treatments. A simple regression analysis revealed effects for age, with younger learners benefiting from CF more than older learners.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

This meta-analysis synthesized 15 classroom-based quasi-experimental studies (N = 827) to assess whether oral corrective feedback (CF) improves second language development and how its effects vary by feedback type, outcome measure, setting, treatment length, and learner age. CF produced significant and durable gains, with prompts generally outperforming recasts and younger learners benefiting more than older learners.

Key findings

  • CF had a medium-to-large overall effect in classroom settings: between-group contrasts averaged d = 0.74 (43 d values), while within-group contrasts averaged d = 0.91 (33 d values); control groups showed d = 0.39, and CF groups did not overlap with controls in confidence intervals.
  • Prompts were more effective than recasts in within-group contrasts (prompts d = 1.14 vs. recasts d = 0.70); between-group effects were prompts d = 0.83, recasts d = 0.53, and explicit correction d = 0.84, with explicit correction not significantly distinguishable from either prompts or recasts.
  • Effects did not decline significantly from immediate to delayed posttests: between-group immediate d = 0.63 and delayed d = 0.84; within-group immediate d = 0.84 and delayed d = 1.01.
  • Free constructed-response measures showed the largest effects (between-group d = 0.97; within-group d = 1.25), followed by constrained constructed-response measures (d = 0.70; d = 0.86) and metalinguistic judgments (d = 0.45; d = 0.70); long treatments exceeded short-to-medium treatments between groups (d = 1.13 vs. d = 0.57), and age was negatively related to CF effects (26.2% of between-group variance, 16.4% of within-group variance).

Methods

  • The authors conducted a meta-analysis of published quasi-experimental CF studies conducted in L2 classrooms, excluding laboratory-based and observational studies; 15 studies with 827 learners met inclusion criteria.
  • Searches covered databases such as ERIC and LLBA and major journals, using keywords including feedback, corrective feedback, recasts, prompts, explicit correction, negotiation, and pre/post design.
  • Effect sizes were calculated as Cohen’s d for between-group and within-group contrasts, with 95% confidence intervals; coded variables included CF type (recasts, explicit correction, prompts), posttest timing (immediate vs. delayed), outcome measure type (free constructed response, constrained constructed response, metalinguistic judgment), setting (second vs. foreign language), treatment length (brief <1 hr, short-to-medium 1–3 hr, long >7 hr), and learner age (analyzed continuously via simple regression).

Limitations

  • The authors state that results should be interpreted cautiously and tentatively because of the small N, broad confidence intervals and standard deviations, and the inclusion of multiple effect sizes from the same sample studies.
  • The authors also note that only published work was included, raising the file-drawer problem because non-significant studies may remain unpublished; they did not retrieve fugitive literature.
  • Evident from the text: several categories were very small (e.g., within-group explicit correction n = 3, k = 4; long treatments n = 3; brief within-group contrasts not calculated; selected-response measures n = 1, k = 8 and not interpreted), and the authors caution that more classroom studies comparing CF types are needed before firm conclusions.

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Integrity signals

Registry

Crossref · 10.1017/s0272263109990520

Cites

98 of 98 references verified0 citation errors · 0 not checkable

Statistics

2 tests recomputed · 0 with the reported and recomputed p on opposite sides of .05

Verification

Claims the paper makes

46 Own result · 22 Own interpretation · 11 Sources not found · 7 Own method · 7 No basis given · 4 Couldn’t confirm · 2 No full text of the sources · 2 Not checked yet · accuracy not yet measured

Show all 61 claims

  • Probably not a substantial claim. 18
  • It may state two separate claims as one. 26
  • The quote only partly states this claim. 2
40 of 40
  • The paper relies on this without support.

    The 15 included classroom studies are sufficiently comparable in their instructional treatments to be combined in one meta-analysis despite substantial differences.

    “It should be noted, however, that the instructional treatments employed in the 15 studies differ in substantial ways”
  • The paper relies on this without support.

    The classification of corrective feedback types into recasts, explicit correction, and prompts is reliable enough for meta-analytic comparison.

    “The classifi cation of prompts at discrete points along this continuum is rather crude and open to further refi nement”
  • The authors state this as an assumption.

    Results from laboratory-based studies cannot predict the pedagogical effectiveness of corrective feedback in classrooms.

    “Based on the premise that results of laboratory-based studies cannot predict the pedagogical effectiveness of CF, the current meta-analysis included only classroom quasi-experimental CF studies to assess the pedagogical value of CF techniques in L2 classrooms.”
3 of 3

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Statistics that don’t add up

Each reported p-value recomputed from its test statistic and degrees of freedom.

1 of 1

Statistics recomputed

Every reported test result, recomputed from its test statistic and degrees of freedom. A result shows as not adding up only once an independent check has confirmed it.

  • Doesn’t add upF(1, 41) = 14.573reported p < .0001 · recomputed p < .001

    “F (1, 41) = 14.573, p < .0001”

  • ConsistentF(1, 31) = 6.075reported p < .02 · recomputed p = .019

    “F (1, 31) = 6.075, p < .02”

2 of 2

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

3 of 3

Citations

Cites

Show all 95 references

Research works printed but not linked: 11

  1. Mackey, 2007, Conversational interaction in SLA: A collection of empirical studies
  2. Ellis, 1994, Down the garden path: Another look at negative feedback, JALT Journal, 16, 9
  3. Long, 2007, Problems in SLA
  4. 10.1002/9780470756492 · DOI
  5. Doughty, 1998, Focus on forms in classroom second language acquisition
  6. Herron, 1988, Learning grammatical structures in a foreign language: Modeling versus feedback, The French Review, 61, 910
  7. Kim, 2001, Explicit vs. implicit corrective feedback, The Korean TESOL Journal, 4, 57
  8. Long, 1998, Focus on form in classroom second language acquisition, 15
  9. Russell, 2006, Synthesizing research on language learning and teaching, 133
  10. Loewen, 2007, Conversational interaction in second language acquisition: A collection of empirical studies, 361
  11. Sheen, 2007, Conversational interaction in second language acquisition: A collection of empirical studies, 301

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Metadata

Authors
Lyster, R., & Saito, K.
Affiliations
McGill University (CA)
Corresponding author
  • Lyster, Roy
  • Saito, Kazuya
Venue
Studies in Second Language Acquisition
Published
2010-04-23
Volume
32
Issue
2
Pages
265-302
ISSN
  • 0272-2631 (ISSN-L)
  • 1470-1545
OpenAlex
W2130372131
Cited by
838
References
95
Citations by year
2026: 36 · 2025: 33 · 2024: 46 · 2023: 59 · 2022: 83 · 2021: 124 · 2020: 67 · 2019: 66 · 2018: 50 · 2017: 37 · 2016: 44 · 2015: 53 · 2014: 35 · 2013: 44 · 2012: 38
FWCI
294.41
Type
journal article
Language
en
Open access
Locations
  • Studies in Second Language Acquisition (publishedVersion)
  • eScholarship@McGill (McGill) (submittedVersion)
Funders
Social Sciences and Humanities Research Council of Canada
Topics
  • Social Sciences › Arts and Humanities › Language and Linguistics › EFL/ESL Teaching and Learning
  • Social Sciences › Psychology › Developmental and Educational Psychology › Second Language Acquisition and Learning
  • Social Sciences › Education › Student Assessment and Feedback
Keywords
oral corrective feedback, second language acquisition, prompting, recasts, treatment duration, learner age

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