Claims

Authentic problem-based vocabulary tasks improve two-week retention of vocabulary compared with conventional input-based tasks

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2017 · checked against its sources 2026-11-01 (automated, 1 of 1 entry) · 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? On a delayed posttest administered after a two-week interval, the problem-based group significantly outperformed the control group in vocabulary retention. → Fateme Shir Mohammadi 2017

Evidence

Fateme Shir Mohammadi 2017

Fateme Shir Mohammadi. (2017). The Effect of Authentic Problem-Based Vocabulary Tasks on Vocabulary Learning of EFL Learners. International Journal of Education & Literacy Studies, 5(3). https://eric.ed.gov/?id=EJ1154085

q2 · i? · causal · r1

Delayed posttest comparison after a two-week interval: experimental group (M=19.20, SD= 1.26) versus control group (M= 17.39, SD= 1.67); the t-test "indicates that there is a significant effect".

"the results of independent samples t-test (t (45) = 3.11, Sig=.003) indicates that there is a significant effect"

Discussion

Learner Variables

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