Experimental group outperformed control group on paragraph writing fluency at posttest¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2012 · 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? The experimental group's posttest mean score was significantly higher than the control group's after lexical bundles instruction versus placebo treatment. → Ranjbar 2012
Evidence¶
Ranjbar 2012¶
Ranjbar, N., Pazhakh, A., & Gorjian, B. (2012). The Effect of Lexical Bundles on Iranian EFL Learners Linguistic Production Fluency. International Education Studies, 5(4). https://doi.org/10.5539/ies.v5n4p243
q2 · i? · causal · r2
Independent-samples t-test comparing posttest means of the 45-student experimental group (17.9111) and 45-student control group (7.6222) after a semester of treatment. The article reports t = 5.640, significance .000, and a mean difference of 8.84444; no effect size is printed.
"Moreover, the t-test was 5.640 and the significance level was .000, which meant that the difference between the mean scores of control and experimental groups was significant."
Discussion¶
Learner Variables¶
- Writing Skills — outcome: instruction changes it
Related Claims¶
- The fluency gain's cause is unresolved: it may reflect lexical bundles instruction or simply more paragraph writing practice — related
- Lexical bundles instruction significantly improved Iranian EFL learners' paragraph writing production fluency from pretest to posttest — related
Page metadata
| Field | Value |
|---|---|
status |
review |
generated |
by process:wiki-ingest on 2026-11-02 |
trust |
unverified — no one has confirmed this page's content |
Frontmatter is the page's machine-readable record — see the Schema & Guide.