Focused on (1) the effect of mother-child interaction during a problem-solving task on subsequent, independent child performance; and (2) the variability in the division of task responsibilities and maternal regulation of the child as a function of task difficulty, child age, and task component. Participants were 60 three to five year olds and…

To determine the impact of quantitative and qualitative aspects of fathering, relationships among father involvement in childrearing, parenting characteristics, and child adaptation were investigated. Results from 70 infants 20 months of age and their parents highlighted the salience of qualitative characteristics of parenting for toddler…

Examined children's mathematical competencies between ages 7 and 9. Found no differences in developmental rate between children with math difficulties only (MD), math and reading difficulties (MD-RD), reading difficulties only (RD), and normal math/reading achievement (NA). Found that at end of Grade 3, MD group performed better than MD-RD group…

Examined the development of proportional reasoning by means of a temperature mixture task. Results show the importance of distinguishing between intuitive knowledge and formal computational knowledge of proportional concepts. Provides a new perspective on the relation of intuitive and computational knowledge during development. (GLR)