Betsy McCarthy is a Senior Researcher in WestEd’s STEM program. McCarthy received a bachelor’s degree from Stanford University, a master’s degree in developmental psychology from San Francisco State University, and a doctorate in education from Stanford University where she was twice a Spencer Foundation Fellow. She directs large research projects including an i3 grant with Sonoma State University focused on secondary STEM learning, Twin Cities PBS’s STEM Superhero School federal Ready to Learn project to develop television and digital learning resources for children ages 3-8, an NSF DRK-12 Development grant in Measurement—Development of the Electronic Test of Early Numeracy—and a five-year Race to the Top-District (RTT-D) personalized learning project.