Children with developmental dyscalculia are disproportionately impaired on subtraction accuracy relative to addition, showing a significant group × operation interaction¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2014 · 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? Children with DD show greater accuracy impairment on subtraction (49.7% vs 73.9%) than on addition (65.6% vs 76.4%), with a significant Group × Operation interaction. → Rosenberg-Lee 2014
Evidence¶
Rosenberg-Lee 2014¶
Rosenberg-Lee, M., Ashkenazi, S., Chen, T., Young, C. B., Geary, D. C., & Menon, V. (2014). Brain hyper-connectivity and operation-specific deficits during arithmetic problem solving in children with developmental dyscalculia. Developmental Science. https://doi.org/10.1111/desc.12216
q3 · i? · associational · r2
Two-way ANOVA on accuracy (Operation within-participants, Group between-participants) in 16 DD and 20 TD children. The interaction "was qualified by a significant Group × Operation interaction (F(34, 1) = 5.37, p = .027)", driven by subtraction impairment (DD 49.7% vs TD 73.9%, t(34) = −3.62, p = .001) versus addition (DD 65.6% vs TD 76.4%, t(34) = 1.84, p = .074).
"The significant main effects for Operation (F(34, 1) = 10.10, p = .003) and Group (F(34, 1) = 9.87, p = .003) were qualified by a significant Group × Operation interaction (F(34, 1) = 5.37, p = .027)"
Discussion¶
Learner Variables¶
- Learning Disabilities and Developmental Differences — moderator: an instructional effect differs with it
- Operations and Place Value — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Children with DD show greater brain activation than TD children in parietal, occipito-temporal and prefrontal regions during both addition and subtraction — related
- DD children show operation-specific hyperactivation: greater IPS, superior parietal lobule and fusiform activity during subtraction, while during addition only the right superior parietal lobule differs (lower in DD) — related
- Children with DD show slower reaction times than TD children during arithmetic problem solving, with no operation-specific RT effect — related
- Direct subtraction items were solved more accurately and faster than indirect addition items — related
- Arithmetic problem-solving performance improves over 1.2 years in children, with larger gains on standard addition than control problems — related
- Individual records revealed contrasting specific disabilities within the same pupil across arithmetic operations — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dd-subtraction-accuracy-deficit-interaction |
title |
Children with developmental dyscalculia are disproportionately impaired on subtraction accuracy relative to addition, showing a significant group × operation interaction |
description |
Children with developmental dyscalculia are disproportionately impaired on subtraction accuracy relative to addition, showing a significant group × operation interaction |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2014 |
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 — rosenberg-lee-2014 |
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