Developmental dyscalculia (DD) is a mathematics learning disorder that affects approximately 5% to 7% of the population. This study aimed to detect the underlying domain-specific and domain-general differences between DD and typically developing (TD) children. We recruited 9-year-old primary school children to form the DD group via a 2-year…

A number of previous studies have identified cognitive deficits in developmental dyscalculia (DD). Yet, most of these studies were in alphabetic languages, whereas few of them examined Chinese DD. Here, we conducted a study aiming to determine the cognitive factors associated with DD in Chinese children. Five candidate cognitive factors of…

Copying characters presented previously (delayed copying) is an important skill in Chinese literacy acquisition. The relations of delayed copying and a set of literacy-related skills (including vocabulary knowledge, rapid automatized naming, phonological awareness, morphological awareness, and orthographic awareness), visual-orthographic judgment,…

A wide share of secondary school children does not reach the expected competence level in reading. These children could benefit from more efficient intervention responses, providing a better understanding of their cognitive weaknesses/deficits. Our aim was to explore the cognitive heterogeneity of a population of poor readers identified from a…

The effects of grade level, achievement level, and sex were studied in the examination of determinants of visual-motor coordination and visual-perceptual reasoning in elementary school children. (KW)