Claims

PBL improves EFL writing proficiency across nine reviewed studies, including essay, paragraph, and descriptive writing

Claim · All claims
Evidence · 1 study · review r3 · 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? Nine reviewed studies report improvements in writing skills under PBL, including superior essay-writing performance versus control groups. → Guo Qian 2024

Evidence

Guo Qian 2024

Guo Qian, Jamil Halimah, Ismail Lilliati, Luo Shujie, Sun Zhubin. (2024). Effects of problem-based learning on EFL learning: A systematic review. PLOS ONE. https://doi.org/10.1371/journal.pone.0307819

q2 · i? · review · r3

Narrative synthesis of nine studies (Studies 5, 9, 10, 11, 12, 15, 17, 21, 25) on writing. Study 11 was a six-week online PBL quasi-experiment; the experimental group showed "superior performance in various aspects of essay writing".

"Ibnian [24] focused on online PBL in Study 11, where the experimental group exhibited superior performance in various aspects of essay writing compared to the control group."

Discussion

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