is an Education Researcher at Mathematica Policy Research. Her work includes applied research, technical assistance, and impact evaluations for clients such as the U.S. Department of Education, the National Science Foundation, state education agencies, and school districts. Sophia specializes in mixed-methods education implementation studies, especially in urban communities. Her research interests include school choice, school diversity, and teacher careers. Current projects explore topics such as factors influencing 9th grade student success in a large urban district, Title I funding implementation, and magnet school impacts. Sophia started her career as a middle and high school science teacher and she holds an M.Ed. from the University of Pennsylvania and a PhD in Education Policy from Temple University.