Mathematical deficits among children with dyslexia are heterogeneous, spanning four distinct deficit profiles¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Among dyslexic children with mathematical deficits, the nature of the deficits is heterogeneous, falling into number processing, arithmetical procedures, arithmetic facts retrieval, and geometrical abilities subgroups. → B. Pedemonte 2024

Evidence¶

B. Pedemonte 2024¶

B. Pedemonte, C. W. Pereira, V. Borghesani, M. Ebbert, I. E. Allen, P. Pinheiro-Chagas, J. De Leon, Z. Miller, B. L. Tee & M. L. Gorno-Tempini. (2024). Profiles of mathematical deficits in children with dyslexia. npj Science of Learning. https://doi.org/10.1038/s41539-024-00217-x

q3 · i? · associational · r2

Behavioral-neurology classification of 75 children with dyslexia by a professional clinician team, followed by MCB evaluation of concordance. The article states "there is heterogeneity in the nature of these de ficits" across the four domains assessed by the battery.

"Our study reveals that within a cohort of children with dyslexia, 66% exhibit mathematical deficits, and among those with mathematical deficits, there is heterogeneity in the nature of these de ficits."

Discussion¶

Learner Variables¶

• Operations and Place Value — outcome: instruction changes it

Related Claims¶

• Two-thirds of a clinically referred dyslexia cohort exhibit mathematical deficits — related
• Fact retrieval deficits in LA-Severe children occur alongside intact addition procedural competencies and modest, improving number-task performance — related
• Adults with DD rely on time-consuming back-up strategies like finger usage for single-digit arithmetic, with prolonged response latencies that appear number-specific — related
• Counting-string intrusion errors are as common in LA-Severe Fact Retrieval children as in children with MLD, but decline across grades only for the MLD group — related
• LA-Severe Fact Retrieval children commit retrieval errors on forced retrieval at rates equal to children with MLD, with no across-grade improvement — related
• After controlling for domain-general abilities and reading, MLD children show deficits on all mathematical cognition tasks while LA-Severe children show a specific counting-string intrusion deficit — related
• Adults with dyslexia without dyscalculia show no deficit in nonsymbolic numerical magnitude processing — related
• Fourth graders with poor arithmetic-fact abilities (PoorAF) and matched controls did not differ on a perceptual shape-matching speed task — related
• The MCB confirmed clinicians' impressions of mathematical ability or difficulty in dyslexic children — related
• Standard achievement assessments often fail to detect mathematical difficulties in children with dyslexia — related