Leigh oversees a diverse portfolio of mixed methods research on abortion and contraception, all focusing on the principle of reproductive autonomy. Her work is guided by four primary questions:
- What do we measure?
- How do we measure it?
- What don't we measure?
- What are the implications of these inclusions/exclusions for reproductive equity?
Her approach intertwines feminist epistemologies and critical development and race theories with a more objectivist approach to health research. Leigh's current research collaborations include:
- The Contraceptive Autonomy Study (Burkina Faso)
- The PPIUD Study (Tanzania, Nepal, and Sri Lanka)
- The HER Salt Lake Study (United States)
- A study of legal access abortion at public health clinics (Mexico)
- The trajectories of abortion seekers in legally restrictive settings (francophone West Africa)
Leigh is fluent in French and Spanish, and has conducted additional fieldwork in: Benin, Togo, Senegal, Niger, Turkey, South Africa, Peru, Cameroon, and the United States.