Claims

The no-feedback control group also significantly improved grammatical accuracy from drafts to revisions

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2016 · 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? Control-group students' revision scores were significantly higher than their own first-draft scores on all three writing tasks, without receiving error correction. → Khanlarzadeh and Nemati 2016

Evidence

Khanlarzadeh and Nemati 2016

Mobin Khanlarzadeh, Majid Nemati. (2016). The effect of written corrective feedback on grammatical accuracy of EFL students: An improvement over previous unfocused designs. Iranian Journal of Language Teaching Research 4(2). https://www.urmia.ac.ir/ijltr

q2 · i? · causal · r1

Paired t-tests within the control group (df = 16) comparing draft and revision scores on the three writing tasks. The study reports each revision was "significantly different" from its draft; no effect size was printed.

"the mean scores of the control group on revision 1, revision 2, and revision 3, respectively, are significantly different from their mean scores on writing task 1, writing task 2, and writing task 3 (t = -3.22, p = .007; t = -2.68, p = .01; t = 3.12, p = .008)."

Discussion

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