Rebecca joined Mathematica Policy Research in July 2011 as a Survey Associate. Over the last two years, she has worked on numerous large-scale data collection projects in the areas of substance abuse, mental health, disability services, elementary and early childhood education, and nutrition. To date, her favorite project has been the Universal Preschool Childhood Outcomes Study, which examines the feasibility, reliability, and validity of child development measures in the large, culturally and linguistically diverse population of children served by LAUP programs in Los Angeles County. Rebecca co-authored a report on LAUP's model of quality support coaching. The report found that the program occurs in a complex environment, and that its success is influenced by the resources brought to bear on the coaching process, the context in which it takes place, and the complexity of the coaching approach.