Claims

Seminar group membership remained a significant predictor of improvement after controlling for pretest scores (η²p = 0.075)

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i2 medium
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 i2 In an ANCOVA with pretest scores as covariate, seminar membership significantly predicted pretest-to-posttest improvement, F(1, 158) = 12.8, η²p = 0.075. → Simon Cullen 2018

Evidence

Simon Cullen 2018

Simon Cullen, Judith Fan, Eva van der Brugge and Adam Elga (2018). Improving analytical reasoning and argument understanding: a quasi-experimental field study of argument visualization. npj Science of Learning 3:21. https://doi.org/10.1038/s41539-018-0038-5

q3 · i2 · causal · r2

ANCOVA using group membership as independent variable and pretest scores as covariate, controlling the pretest–improvement relationship (B = −0.40). Group membership "accounted for a signi ficant proportion of the variance in scores", η²p = 0.075.

"we found a signi ficant effect of membership in the seminar group, B = 1.5, 95% CI: [0.67, 2.34], p < 0.001, which accounted for a significant proportion of the variance in scores, F(1, 158) = 12.8, p < 0.001, η2 p = 0.075"

Discussion

Page metadata
Field Value
type claim
id seminar-ancova-group-effect
title Seminar group membership remained a significant predictor of improvement after controlling for pretest scores (η²p = 0.075)
description Seminar group membership remained a significant predictor of improvement after controlling for pretest scores (η²p = 0.075)
status review
evidence_strength moderate
newest_evidence 2018
generated by process:wiki-ingest on 2026-10-26
trust unverified — no one has confirmed this page's content
sources 1 — simon-cullen-2018

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