Cognitive precursors of arithmetic development in primary school children with cerebral palsy.
In CP, working memory and non-verbal IQ drive arithmetic gains—screen these domains before math instruction.
01Research in Context
What this study did
The team followed a small group of primary-school children with cerebral palsy for two years.
They gave tests of arithmetic, working memory, and non-verbal IQ every year.
The goal was to see which thinking skills forecast math growth in CP.
What they found
Arithmetic scores went up over the two years.
Kids with stronger working memory and non-verbal IQ started higher and gained faster.
These two skills were the key engines of math progress.
How this fits with other research
de Freitas Feldberg et al. (2021) looked at a wider age range and found medium-sized math deficits in CP compared with typical peers. Their picture sounds gloomier, but they tested kids only once; Whitehouse et al. (2014) show that given time, gains do happen.
Wilson et al. (2023) tracked a big population sample and reported large academic gaps, with 44% of CP pupils also meeting criteria for intellectual disability. That cross-sectional snapshot aligns with M’s finding that non-verbal IQ sets the starting line.
Vanbinst et al. (2014) followed children with persistent math learning difficulties and saw that weak symbolic magnitude, not working memory, predicted flat fact-retrieval curves. In CP, working memory still matters, suggesting different cognitive roads to the same math struggle.
Why it matters
Before you write a math goal, screen working memory and non-verbal IQ. If either is low, plan shorter steps, visual scaffolds, and frequent review. The child can still grow, but the pace will ride on these two skills.
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02At a glance
03Original abstract
The aim of this study was to examine the development of arithmetic performance and its cognitive precursors in children with CP from 7 till 9 years of age. Previous research has shown that children with CP are generally delayed in arithmetic performance compared to their typically developing peers. In children with CP, the developmental trajectory of the ability to solve addition- and subtraction tasks has, however, rarely been studied, as well as the cognitive factors affecting this trajectory. Sixty children (M=7.2 years, SD=.23 months at study entry) with CP participated in this study. Standardized tests were administered to assess arithmetic performance, word decoding skills, non-verbal intelligence, and working memory. The results showed that the ability to solve addition- and subtraction tasks increased over a two year period. Word decoding skills were positively related to the initial status of arithmetic performance. In addition, non-verbal intelligence and working memory were associated with the initial status and growth rate of arithmetic performance from 7 till 9 years of age. The current study highlights the importance of non-verbal intelligence and working memory to the development of arithmetic performance of children with CP.
Research in developmental disabilities, 2014 · doi:10.1016/j.ridd.2014.01.016