Meaning-focused exposure to spoken L2 input yields large vocabulary gains (g = 1.05) in incidental word learning¶
Claim · All claims
Evidence · 1 study · quant-synthesisr3·q3·i3large
Currency · newest study 2018 · 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 i3 Across 32 studies, meaning-focused exposure to spoken L2 input produced a significant mean learning gain of g = 1.05. → de Vos 2018
Evidence¶
de Vos 2018¶
de Vos, J. F., Schriefers, H., Nivard, M. G., & Lemhöfer, K. (2018). A Meta-Analysis and Meta-Regression of Incidental Second Language Word Learning from Spoken Input. Language Learning. https://doi.org/10.1111/lang.12296
q3 · i3 · quant-synthesis · r3
Random-effects meta-analysis of 105 effect sizes from 32 primary studies with 1,964 participants with typical cognitive functioning. The weighted average effect was "g = 1.05, 95% confidence interval (CI) [0.81, 1.28]", significantly larger than zero, indicating generally large vocabulary gains from spoken input.
"Model 1 yielded a weighted average effect-size estimate of g = 1.05, 95% confidence interval (CI) [0.81, 1.28], SE = 0.12, z = 8.77, p < .0001"
Discussion¶
Learner Variables¶
- Oral Language — outcome: instruction changes it
Related Claims¶
- L2 learners pick up vocabulary incidentally from meaning-focused input, with reading the most-studied mode and listening yielding similar proportions of words learned — a broader claim this one bears on
- Incidental vocabulary exposure produces reliable learning, but learners pick up only a small share of the unknown words they meet — related
- Reading and listening yield similar proportions of incidental vocabulary learning, with reading ahead only on some immediate posttests — related
- Reading a single authentic novel yields incidental vocabulary gains, with more gains for words occurring more than five times — related
- Participants incidentally acquired an average of 3.19 of 20 target words after reading two passages — related
- L2 proficiency positively predicts L2 incidental vocabulary acquisition through reading — related
- Classroom experiments test whether instructional procedures that increase the salience and cognitive processing of targeted words in reading texts can support L2 vocabulary acquisition — related
- Higher L2 reading proficiency, motivation, and involvement load are associated with larger incidental vocabulary gains — related
- Adult (university) participants outperform kindergarten/elementary children in incidental spoken L2 word learning — related
- Interactive learning tasks produce larger incidental spoken word-learning gains than noninteractive tasks — a narrower finding that bears on this claim
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
spoken-input-incidental-l2-word-learning-large-gains |
title |
Meaning-focused exposure to spoken L2 input yields large vocabulary gains (g = 1.05) in incidental word learning |
description |
Meaning-focused exposure to spoken L2 input yields large vocabulary gains (g = 1.05) in incidental word learning |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2018 |
generated |
by process:wiki-ingest on 2026-10-15 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — de-vos-2018 |
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