Participants required less time to solve common-numerator items containing an improper fraction than items without improper fractions¶
Claim · All claims
Evidence · 1 study · causalr2·q3·i3large
Currency · newest study 2019 · 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 A two-way ANOVA on prime RTs revealed participants were faster on common-numerator items in which one fraction was improper (M = 2942 ± 1151 ms) than on items where both were improper or both were not (M = 2673 ± 916 ms). → Rossi 2019
Evidence¶
Rossi 2019¶
Rossi, S., Vidal, J., Letang, M., Houdé, O., & Borst, G. (2019). Adolescents and Adults Need Inhibitory Control to Compare Fractions. Journal of Numerical Cognition, 5(3), 314-336. https://doi.org/10.5964/jnc.v5i3.197
q3 · i3 · causal · r2
A two-way ANOVA on prime RTs showed "participants required less time to solve common numerator items in which one of the two fractions was an improper fraction" with ηp2 = 0.15. No effect of age or interaction was found.
"participants required less time to solve common numerator items in which one of the two fractions was an improper fraction (M = 2942 ± 1151 ms) than to solve common numerator items in which both fractions were improper or both fractions were not improper (M = 2673 ± 916 ms), F(1, 48) = 8.62, p = .005, ηp2 = 0.15"
Discussion¶
Related Claims¶
- Participants committed more errors on common-numerator prime items than on denominator-numerator control prime items — related
- Participants required more time and committed more errors when comparing fractions with common numerators than with common denominators — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
improper-fraction-facilitation-common-numerator |
title |
Participants required less time to solve common-numerator items containing an improper fraction than items without improper fractions |
description |
Participants required less time to solve common-numerator items containing an improper fraction than items without improper fractions |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2019 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — rossi-2019 |
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