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Our People
Mathematica's reputation for quality and objectivity is based in no small part on our high-caliber staff. Employees at all levels are selected for their superior experience, education, and training. Most senior staff hold doctoral degrees and are nationally recognized in their fields, which include economics, sociology, survey research, public policy analysis, demography, education, and computer technology.
Expert Spotlight
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Senior ResearcherPurvi Sevak’s primary research interest is in policies to support the employment and well-being of people with disabilities and chronic conditions. Her work spans the fields of health, employment, and program evaluation.
Featured ProjectsFeatured Publications- Examining the Consequences of Poor Neonatal Health on the Family
- Child Disability, Maternal Labor Supply, and Household Well-Being
Topics- Health
- Disability
- Employment and Income Support
- Statistics and Measurements
- Disability
- Employment and Income Support
- Statistics and Measurements
- Human Services
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Senior Systems AnalystEmma Kopa’s specialties include programming, project management, data analysis, and value-added analysis with a focus on education evaluations.
Featured Publications- Does Tracking of Students Bias Value-Added Estimates for Teachers?
- Horseshoes, Hand Grenades, and Treatment Effects? Reassessing Bias in Nonexperimental Estimators
Topics- Education
- School Choice and Charters
- Teacher and Principal Effectiveness
- Teacher and Principal Preparation and Support
- Human Services