Numerical cognition assessed at end of first grade statistically mediates associations between early processing speed, working memory, calculation skill, word-problem solving, and attentive behavior and later calculations, word-problem solving, and reading¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2022 · checked against its sources 2026-10-25 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q3 i? In an observational path model, intermediary numerical cognition statistically mediated associations between early calculation skill, WPS, reading, processing speed, working memory, and attentive behavior and all three later outcomes; this shows associations, not causal effects. → Spencer Mercedes 2022

Evidence¶

Spencer Mercedes 2022¶

Spencer Mercedes, Fuchs Lynn S., Geary David C., Fuchs Douglas. (2022). Connections between Mathematics and Reading Development: Numerical Cognition Mediates Relations between Foundational Competencies and Later Academic Outcomes. Journal of Educational Psychology. https://doi.org/10.1037/edu0000670

q3 · i? · associational · r2

Path analysis mediation model (final pruned model) fitted to longitudinal data from 370 first graders with bootstrapped 95% bias-corrected CIs (5,000 draws); the final model showed intermediary NC "mediated associations between early calculation skill, WPS, reading, processing speed, working memory, and attentive behavior and all outcomes." The authors frame this as a causal mediation model, but the data are observational: the mediated paths are associations, and the authors themselves note likely residual confounding (for example by language comprehension and executive function), so the model cannot show that numerical cognition carries a causal effect.

"intermediary NC was related to later calculations, WPS, and reading performance and mediated associations between early calculation skill, WPS, reading, processing speed, working memory, and attentive behavior and all outcomes"

Discussion¶

Learner Variables¶

• Operations and Place Value — predictor: learners who differ on it differ in outcomes
• Processing Speed — predictor: learners who differ on it differ in outcomes
• Reading Fluency — outcome: instruction changes it

Related Claims¶

• Crossover effects: early reading fluency predicts later mathematics outcomes more strongly than early mathematics skills predict later reading — related
• Early working memory, processing speed, and attentive behavior predict later calculations, word-problem solving, and reading, but nonverbal reasoning is not significantly associated with any outcome — related
• The final pruned mediation model fits the data excellently and accounts for 58.0%, 62.2%, and 53.2% of variance in later calculations, word-problem solving, and reading — related
• Early listening comprehension directly predicts later word-problem solving and word reading but not calculations, and numerical cognition does not mediate this relation — reports the opposite
• End-of-first-grade numerical cognition directly predicts later calculations, word-problem solving, and word reading, with the strongest relation to calculations — related
• Working memory fully mediates the effects of math anxiety and attention on children's non-verbal Numerical Operations — related
• Visuospatial memory did not predict word reading achievement in any grade, providing a discriminative contrast with mathematics — related
• Different domain-general factors uniquely account for variation in different arithmetic skills — related
• Math anxiety has both a direct negative effect and a WM-mediated indirect effect on children's verbal Math Reasoning, but only an indirect effect on Numerical Operations — related
• Visuospatial skill improvement does not mediate intervention effects on classroom behavior — related
• Grade 5 academic and non-cognitive skills are positive predictors of grade 8 mathematics scores — related