My primary research focus is to better understand the processes underlying cognitive development in preschoolers and school-aged children. Specifically, I am interested in cognitive, metacognitive, affective, and motivational factors that impact academic achievement. Much of my research has focused on individual differences in learning. My research has attempted to understand cognitive and academic consequences of learning disabilities, attention deficit disorder, language disabilities, and reading disabilities. More recently, collaborative work has focused on the academic, attentional, and behavioral consequences of broncho-pulmonary dysplasia and prenatal cocaine exposure.