Claims

Non-symbolic addition performance correlates with mathematics achievement in a new sample, surviving controls for verbal intelligence and literacy (Experiment 2)

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2010 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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? In Experiment 2, non-symbolic addition performance correlated with mathematics achievement (r = .376), and the correlation remained after controlling for verbal intelligence and literacy achievement (r = .276). → Gilmore Camilla K. 2010

Evidence

Gilmore Camilla K. 2010

Gilmore Camilla K., McCarthy Shannon E., Spelke Elizabeth S. (2010). Non-symbolic arithmetic abilities and achievement in the first year of formal schooling in mathematics. Cognition. https://doi.org/10.1016/j.cognition.2010.02.002

q3 · i? · associational · r2

Experiment 2 gave 62 kindergarten children from a different lower-middle socioeconomic community a modified non-symbolic addition task with easier ratios, plus verbal and Arabic number knowledge tests, and end-of-year school tests of mathematics, reading (DIBELS) and verbal intelligence (PPVT-III).

"performance of non-symbolic addition again was correlated with academic achievement in mathematics (r = .376, df = 59, p =. 003; Figure 4b), and the correlation remained after controlling for verbal intelligence and achievement in literacy (r = .276, df = 57, p = .034)"

Discussion

Learner Variables

Page metadata
Field Value
type claim
id nonsymbolic-addition-predicts-math-exp2
title Non-symbolic addition performance correlates with mathematics achievement in a new sample, surviving controls for verbal intelligence and literacy (Experiment 2)
description Non-symbolic addition performance correlates with mathematics achievement in a new sample, surviving controls for verbal intelligence and literacy (Experiment 2)
status review
evidence_strength moderate
newest_evidence 2010
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — gilmore-camilla-k-2010

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