My research aims to strengthen public health programs and policies through improved measurement of intervention coverage and health impact. My work focuses on improving the availability and quality of data for public health decision-makers in low- and middle-income countries. I work to validate existing measures of intervention quality and coverage and strengthen methods for measuring key health indicators. Currently, my focus is on developing methods for linking household and health care provider assessments for estimating intervention coverage, including geospatial techniques for combining data sets. I also work on estimating intervention impact through mortality modeling and direct estimation from survey data.