Academic vocabulary is directly related to fifth-grade geometric skills over and above arithmetic skills¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2018 · checked against its sources 2026-10-17 (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? Academic vocabulary had a direct effect on geometric skills after controlling for arithmetic skills, working memory, general intelligence, SES, age, and gender. → Kleemans 2018
Evidence¶
Kleemans 2018¶
Kleemans, T., Segers, E., & Verhoeven, L. (2018). Role of linguistic skills in fifth-grade mathematics. Journal of Experimental Child Psychology, 167, 404-413. https://doi.org/10.1016/j.jecp.2017.11.012
q3 · i? · associational · r2
First mediation analysis with 167 fifth graders, geometric skills as dependent variable and arithmetic skills as mediator. The article reports academic vocabulary among the predictors with strong direct effects; no standardized effect size for this direct effect is printed.
"the results showed that arithmetic skills, academic vocabulary, and general intelligence had strong direct effects on geometric skills."
Discussion¶
Learner Variables¶
- Geometric Reasoning — outcome: instruction changes it
- Vocabulary — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Verbal reasoning is directly related to fifth-grade fraction skills over and above arithmetic skills — related
- Basic linguistic skills and working memory are indirectly related to fifth-grade geometric skills via arithmetic skills — related
- Basic linguistic skills and working memory are indirectly related to fifth-grade fraction skills via arithmetic skills — related
- IQ and working memory are reliable predictors of academic achievement at the beginning of school when domain knowledge is not controlled — related
- Academic vocabulary, verbal reasoning, nonverbal reasoning, and working memory directly predict sixth-grade geometric and fraction skills — a broader claim this one bears on
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
academic-vocabulary-directly-related-geometric-skills |
title |
Academic vocabulary is directly related to fifth-grade geometric skills over and above arithmetic skills |
description |
Academic vocabulary is directly related to fifth-grade geometric skills over and above arithmetic skills |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2018 |
source_checked |
2026-10-17 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — kleemans-2018 |
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