Participants committed more errors on common-numerator prime items than on denominator-numerator control prime items¶
Claim · All claims
Evidence · 1 study · causalr2·q3
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 i? Non-parametric ANOVAs on prime error rates revealed a main effect of condition, with more errors on common-numerator items than on denominator-numerator items. → 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 · i? · causal · r2
Non-parametric ANOVAs on prime error rates showed "Adults and adolescents committed more errors when comparing fractions with common numerators (test trials: 16.2 ± 2.1%) than when deciding which fraction had a denominator larger than the numerator (control trials: 9.5 ± 1.2%)". No effect size was reported for this contrast.
"Adults and adolescents committed more errors when comparing fractions with common numerators (test trials: 16.2 ± 2.1%) than when deciding which fraction had a denominator larger than the numerator (control trials: 9.5 ± 1.2%)"
Discussion¶
Related Claims¶
- Participants required more time and committed more errors when comparing fractions with common numerators than with common denominators — related
- No significant differences in probe error rates between test and control trials were found, suggesting the negative priming RT effect is not due to speed-accuracy trade-offs — related
- Adolescents and educated adults require more time to compare common-denominator fractions after a common-numerator prime than after a control prime (negative priming effect) — related
- Participants required less time to solve common-numerator items containing an improper fraction than items without improper fractions — related
- Equal accuracy on fraction comparison items can mask fundamentally different misconceptions — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
common-numerator-prime-higher-error-rate |
title |
Participants committed more errors on common-numerator prime items than on denominator-numerator control prime items |
description |
Participants committed more errors on common-numerator prime items than on denominator-numerator control prime items |
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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