I am the executive director of the Children, Youth, and Families division within the Human Services unit at Mathematica specializing in food and nutrition policy and employment and training programs. My research focuses on federal nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP) and the Older Americans Act Title III-C Nutrition Services Program, as well as community-based emergency food programs. Much of my work focuses on low-income households' decisions to participate in these programs, to find and retain employment, and to address barriers to ensuring job security and adequate access to food.

I currently oversee two evaluations funded by the U.S. Department of Agriculture's Food and Nutrition Service: a rapid cycle evaluation of operational improvements in SNAP employment and training which is testing up to eight small-scale interventions in operations or service delivery and a mobile payments pilot evaluation assessing the effects of allowing SNAP participants to pay for food using their personal mobile devices instead of a SNAP Electronic Benefits Transfer (EBT) card. I am also leading a process evaluation of the Aging Network for  the U.S. Department of Health and Human Services that examines network agencies' return on investment of the services they provide to older adults related to congregate and home-delivered meals, transportation, socialization, and community health  and family caregiving.  My recent work includes evaluations of innovative strategies to help SNAP participants increase employment, earnings, and food security, evaluations of interventions for childhood obesity, and studies of geographic access to food for low-income families.