This study examined how four domain-specific skills (arithmetic procedural skills, number fact retrieval, place value concept, and number sense) and two domain-general processing skills (working memory and processing speed) may account for Chinese children's mathematics learning difficulties. Children with mathematics difficulties (MD) of two age…

This study examined whether children with mathematical difficulties (MDs) or comorbid mathematical and reading difficulties have a working memory deficit and whether the hypothesized working memory deficit includes the whole working memory system or only specific components. In the study, 31 10-year-olds with MDs and 37 10-year-olds with both…

Compared performance of 9-year-olds with arithmetic difficulties to that of age-matched and ability-matched controls on 10 tasks used to assess different aspects of working memory, including subtypes of executive function. Found deficits in executive and spatial aspects of working memory that seem likely to be important factors in poor…