Practice of grammar rules improves only the practiced skill, showing skill specificity of L2 automatization¶
Claim · All claims
Evidence · 2 studies · 1 causalr?, 1 reviewr2·q2–q3
Currency · newest study 2022 · 1 of 2 entries checked against their sources (automated) · 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.
q2 i? A large amount of practice of grammar rules in comprehension and production leads to improvement in the practiced skill, evidence of skill specificity. → Aydinbek C 2022
q3 i? The learning of morphosyntactic rules in a second language is highly skill-specific, so that practicing a rule in comprehension does not automatically confer production skill and vice versa. → Robert M. DeKeyser 1997
Evidence¶
Aydinbek C 2022¶
Aydinbek C. (2022). Contributions of cognitive theory to the problem of automatization of grammatical structures in teaching foreign language. Educational Research and Reviews. https://doi.org/10.5897/ERR2022.4230
q2 · i? · review · r2
In the Results and Discussion section the review reports the longitudinal and fine-grained study by DeKeyser (1997), which supported the model of skill acquisition and showed improvement confined to the practiced skill; no effect size is printed.
"a large amount of practice of grammar rules in comprehension and production leads to improvement in the practiced skill, that is to say, the results have presented evidence of the skill specificity of the learning process"
Robert M. DeKeyser 1997¶
Robert M. DeKeyser. (1997). Beyond Explicit Rule Learning: Automatizing Second Language Morphosyntax. Studies in Second Language Acquisition, Volume 19, Issue 2. https://doi.org/10.1017/S0272263197002040
q3 · i? · causal · r?
Controlled experiment in an artificial language: all subjects received identical instruction and equal amounts of comprehension and production practice, while the assignment of rules to modality varied between groups. The study reports that "the learning of morphosyntactic rules is highly skill-specific."
"All subjects were taught the same rules and then practiced them, and all subjects had the same amount of comprehension and production practice, but which ruleswere practiced in comprehension and which in production varied between groups. Results showthat the learning of morphosyntactic rules is highly skill-specific"
Studies bearing on this claim¶
Does second-language practice carry over to skills and tasks other than the one practised? This table gathers the studies behind this claim and the 6 narrower claims that bear on it: 5 distinct studies (2 review, 1 causal, 1 theoretical, 1 design), q2–q3, 0 of 5 with an effect size coded. One row per study, codes as each entry records them; no effect is averaged and no verdict is drawn. Built by scripts/synthesize_claim.py from eval/synthesis/; a row that looks wrong is fixed on the claim it comes from.
| Study | Design | Effect as recorded | Bears on this claim through |
|---|---|---|---|
| Aydinbek C 2022 | q2 · review · r2 | i? | this claim; Automatization of L2 skills requires extensive practice in a consistent environment, not r (supports) |
| Robert M. DeKeyser 1997 | q3 · causal · r? | i? | this claim |
| Yingli Wang 2008 | q2 · review · r2 | i? | Task rehearsal improves fluency and complexity on the repeated task but does not transfer (supports) |
| Joshua Wedlock & Christopher Binnie 2025 | q2 · theoretical · r2 | i? | Structured repetition gains in fluency depend on repeating the same task (supports) |
| Rafael Zaccaron 2019 | q2 · design · r1 | i? | Immediate task repetition benefits oral performance, including fluency, self-correction an (qualifies); Lynch and Maclean's carousel task showed immediate repetition benefits in pronunciation, v (qualifies); Across repetition cycles, attention can shift from message meaning to linguistic form, ena (qualifies) |
Discussion¶
Learner Variables¶
- Syntax — outcome: instruction changes it
Related Claims¶
-
In one experiment with 256 undergraduates, computer-based lesson versions that included practice produced significantly higher posttest scores than versions without practice — the general claim this finding bears on, with the studies behind it
- A 1982 bilingual-education teacher-training packet asserts, citing Krashen, that repetitive drill and grammar-focused instruction are ineffective for second language acquisition — related
- Low-frequency or low-salience L2 elements are hard or impossible to learn through mere exposure and require extensive practice to proceduralize form-meaning mappings — related
- Grammar instruction and skill drills show little carryover to composition success — related
- Explicitly learned L2 rules can be automatized through systematic practice after a metalinguistic criterion is reached — related
- Automatized L2 morphosyntactic skills develop very gradually over time, following a power function learning curve like other cognitive skills — related
- The training-by-content interaction is not specific to test question type, indicating transfer between skill and fact learning — related
- Peer assessment skills are complex and not automatically acquired, so training and guidance are a crucial design variable — related
- Task rehearsal improves fluency and complexity on the repeated task but does not transfer to a new task of the same type — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
skill-specificity-l2-grammar-practice |
aliases |
l2-morphosyntax-learning-highly-skill-specific |
title |
Practice of grammar rules improves only the practiced skill, showing skill specificity of L2 automatization |
description |
Practice of grammar rules improves only the practiced skill, showing skill specificity of L2 automatization |
status |
review |
evidence_strength |
weak |
newest_evidence |
2022 |
generated |
by process:wiki-ingest on 2026-09-28 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — aydinbek-c-2022, robert-m-dekeyser-1997 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.