Ann Mastergeorge is a developmental and educational psychologist who completed her doctoral work at the University of California, Los Angeles. She joined the UC Davis faculty in Human Development and Family Studies and the M.I.N.D. Institute in 2002, moving from the UCLA Center for the Study of Evaluation/CRESST in the Graduate School of Education. During her time there, she directed longitudinal evaluations of school reforms, studied the implementation of accommodations for students with disabilities in classrooms, and conducted large-scale studies of testing assessments and learning environments. Her areas of expertise are in the areas of early intervention, language development and disorders, social communication and joint attention, and social and emotional development in young children with autism, fragile X Syndrome, and developmental risk. Her research studies and publications focus on both typical and atypical development in infants and young children. Currently, her research studies have focused on early identification and treatment efficacy in autism and fragile X syndrome, implications of school reform in inclusion of young children with disabilities, and developmental trajectories of social attention and joint attention in typical and autism at-risk populations. She has several research collaborations including the Waisman Center, the National Children’s Study, the Center for Excellence in Developmental Disabilities, the University of Washington Center for Mind Brain and Learning/Department of Speech and Hearing Sciences, and the Early Head Start Consortium.