More accurate symbolic number line representations relate to better performance in exact, but not approximate, addition formats¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2015 · 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? Symbolic number line accuracy related to exact addition formats only; nonsymbolic number line accuracy related to the unfamiliar symbolic approximate format. → Xenidou-Dervou 2014
Evidence¶
Xenidou-Dervou 2014¶
Xenidou-Dervou, I., van der Schoot, M., & van Lieshout, E. C. D. M. (2015). Working memory and number line representations in single-digit addition: Approximate versus exact, nonsymbolic versus symbolic. Quarterly Journal of Experimental Psychology, 68(6), 1148–1167. doi:10.1080/17470218.2014.977303
q3 · i? · associational · r2
Across the regression and correlation analyses of the four formats, "more accurate symbolic number line representations relate to better performance in exact addition problem formats, but not the approximate ones"; nonsymbolic number line accuracy related to symbolic approximate addition.
"We found that more accurate symbolic number line representations relate to better performance in exact addition problem formats, but not the approximate ones."
Discussion¶
Learner Variables¶
- Number Sense — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Nonsymbolic exact addition is predicted by the VSSP plus the CE and symbolic number line estimation, suggesting an alternate transcoding to the symbolic code — related
- Symbolic exact addition is predicted by symbolic number line representation and the phonological loop, reflecting phonological storage of numerical information — related
- Both symbolic and nonsymbolic magnitude processing correlate with subtraction accuracy, but subtraction speed is associated only with symbolic tasks — related
- Kindergarteners' performance does not differ between approximate and exact single-digit addition formats, and the two dimensions do not interact — related
- Symbolic approximate addition is predicted by nonsymbolic number line estimation, the VSSP and the CE, consistent with transcoding to the nonsymbolic code — related
- Kindergarteners perform significantly better in nonsymbolic than symbolic single-digit addition problem formats — related
- The visuospatial sketchpad is the best and only unique predictor of kindergarteners' nonsymbolic approximate addition — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
symbolic-number-line-relates-to-exact-addition |
title |
More accurate symbolic number line representations relate to better performance in exact, but not approximate, addition formats |
description |
More accurate symbolic number line representations relate to better performance in exact, but not approximate, addition formats |
status |
review |
evidence_strength |
weak |
newest_evidence |
2015 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — xenidou-dervou-2014 |
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