Claims

Pretest scores strongly predict posttest essay performance in the planning experiment

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i3 large
Currency · newest study 2018 · 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.

q3 i3 The pretest covariate had a strong significant effect on posttest scores (partial eta-squared = 0.72). → Soltanpour 2018

Evidence

Soltanpour 2018

Soltanpour, F., Valizadeh, M., & Ghafarianzirak, F. (2018). Feedback-Mediated Individual and Collaborative Planning: Effects on Structural Organization and Clarity of Argumentative Essays. i-manager's Journal of English Language Teaching, 8(2), April-June 2018. https://eric.ed.gov/?id=EJ1185414

q3 · i3 · causal · r2

Secondary analysis within the robust ANCOVA of the five-group experiment: the covariate (pretest) significantly influenced posttest performance, with the article reporting "partial eta-squared = 0.72". Prior group equivalence was confirmed by non-significant ANOVAs on QPT and pretest scores.

"the Sig. value was 0.00, which is also less than 0.05, and thus indicating that the pre-test scores were a statistical covariate with a strong effect size (F 1,114 = 301.78, p = 0.000 < 0.05, partial eta-squared = 0.72, power = 1.00)"

Discussion

Learner Variables

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