As the Director of the Brandywine Child Development Lab, she studies how infants and young children learn about the world around. Her areas of expertise and publication include playful learning, the impact of technology on children, working memory, mathematical cognition, and language acquisition. Notably, she was a co-lead author on a recent (2015) publication in Psychological Science in the Public Interest about putting education back in educational apps through the application of research in the science of how children learn. She presents her work at professional meetings including: the Society for Research in Child Development, International Congress on Infant Studies, National Academy of Sciences Children and Screens colloquium, International Mind Brain and Education Society, and others.