Input-based FFI is only slightly more effective than output-based FFI for intra-phrasal grammatical features in Persian EFL learners¶
Claim · All claims
Evidence · 1 study · quant-synthesisr1·q2
Currency · newest study 2024 · 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.
q2 i? For intra-phrasal features (e.g., verb tenses, modals), input-based FFI showed a slightly larger mean effect size than output-based FFI (difference of .06). → Schenck 2024
Evidence¶
Schenck 2024¶
Schenck, A. (2024). Learning How to Use Input-Based and Output-Based Form-Focused Instruction: A Meta-Analytic Comparison of Persian EFL Learners. Journal of Second Language Acquisition and Teaching, 30. https://eric.ed.gov/?id=EJ1457419
q2 · i? · quant-synthesis · r1
Meta-analysis of Persian-L1 EFL studies; Table 2 reports intra-phrasal input mean 3.7975 (n=5) vs output mean 3.7405 (n=6). The article reports input-based FFI was only slightly more effective, "(a difference in effect size of .06)".
"Input-based FFI was only slightly more effective when used with intra-phrasal grammatical features (a difference in effect size of .06)."
Discussion¶
Related Claims¶
- Grammatical complexity and L2 proficiency interact: complex features benefit more from input at low proficiency, while simple features benefit more from output at high proficiency — related
- Input-based FFI is more effective than output-based FFI for inter-phrasal grammatical features, with a medium-sized difference — related
- Input-based FFI was more effective than output-based FFI at both beginner and intermediate proficiency levels, and both types showed larger effects for intermediate learners — related
- L1 transfer may moderate FFI effectiveness: features similar to Persian benefit more from input, while disparate features benefit more from output — related
- Output-based FFI was more effective than input-based FFI for complex clausal grammatical features, a difference the article characterizes as a large effect — related
- Proficiency level and input delivery method (FFI vs. no-FFI) interact significantly in their effect on grammatical knowledge — related
Page metadata
| Field | Value |
|---|---|
status |
review |
generated |
by process:wiki-ingest on 2026-10-31 |
trust |
unverified — no one has confirmed this page's content |
Frontmatter is the page's machine-readable record — see the Schema & Guide.