Behavioral ratio sensitivity for reaction time increases with age, with adults showing greater RT ratio sensitivity than children¶
Claim · All claims
Evidence · 1 study · associationalr1·q3·i3large
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2020: baselines and conditions change
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 Across the full sample, RT BRE correlated positively with age (r = .383), and adults showed greater RT ratio sensitivity than children, with adolescents intermediate. → Haist Frank 2015
Evidence¶
Haist Frank 2015¶
Haist Frank, Wazny Jarnet H., Toomarian Elizabeth, Adamo Maha. (2015). Development of brain systems for nonsymbolic numerosity and the relationship to formal math academic achievement. Human brain mapping. https://doi.org/10.1002/hbm.22666
q3 · i3 · associational · r1
Behavioral results section: linear regression of RT BRE on log age in the full sample of 44 participants, plus a one-way ANOVA showing a significant group effect with adults exceeding children (LSD p = .013). The printed correlation is "r = .383, R2 = .147, p = .010."
"There was a significant positive effect for age indicating older participants showed greater ratio sensitivity compared to younger participants, r = .383, R2 = .147, p = .010."
Discussion¶
Learner Variables¶
- Age and Developmental Stage — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Behavioral nonsymbolic numerosity acuity (RT and accuracy ratio effects) does not reliably predict formal math achievement in typical to high-achieving participants aged 6 to 34 — related
- Ratio-effect scores correlated with mathematics achievement in Experiment 1 but not in Experiment 2 with easier ratios — related
- Misconception-task accuracy increases with age between 12 and 15 years, with no age effect on reaction time — related
- Neural ratio sensitivity in parietal cortex, including bilateral IPS, increases with development from childhood into adulthood — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
rt-ratio-sensitivity-increases-with-age |
title |
Behavioral ratio sensitivity for reaction time increases with age, with adults showing greater RT ratio sensitivity than children |
description |
Behavioral ratio sensitivity for reaction time increases with age, with adults showing greater RT ratio sensitivity than children |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2015 |
recheck_by |
2020 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — haist-frank-2015 |
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