We investigated the role of linguistic and cognitive processes in reading precocity from kindergarten to grade 2. A sample of 33 precocious readers was identified that did not differ on age, gender, and parental education to a control group of 259 typical readers. The effects of verbal ability were also controlled. All children were administered a…

This dissertation study aimed to explore whether and how individual differences in verbal and visuospatial working memory capacity and executive functions influence elementary students' mathematics fact mastery and mathematics anxiety as they engage in learning using ReflexTM, a game-based, visuospatial rich adaptive learning platform for…

Books designed for beginning readers typically intermix text with illustrations in close proximity. Prior research suggests this standard layout may reduce literacy skills due to increased attentional competition between text and illustrations. The current study extends this work by examining whether manipulations to the book layout can enhance…

Purpose: The capacity to update and monitor the contents of working memory is an executive function presumed to play a critical role in language processing. The current study used an individual differences approach to consider the relationship between memory updating and accurate reference to story characters in the narratives of typically…

The present longitudinal study tested the roles of early childhood executive control (EC) as well as exposure to poverty-related adversity at family and school levels as key predictors of low-income children's EC in elementary school ("n" = 391). Findings suggest that children's EC difficulties in preschool and lower family income from…

We studied developmental trends in 5 important reasoning tasks that are critical components of the operational definition of rational thinking. The tasks measured denominator neglect, belief bias, base rate sensitivity, resistance to framing, and the tendency toward otherside thinking. In addition to age, we examined 2 other individual difference…