In “Child Health,” Lorraine V. Klerman, a professor at Brandeis University’s Heller School for Social Policy and Management, describes the difficulty of measuring welfare reform’s impact on children’s physical and mental health by using existing data sources and suggests additional approaches to consider. She relies on the following data sources: the Behavior and Risk Factor Surveillance System (BRFSS); the Current Population Survey (CPS); the Medical Expenditure Panel Survey (MEPS); the National Health Interview Survey (NHIS); the National Health and Nutritional Examination Survey (NHANES); the National Hospital Discharge Survey (NHDS); the National Household Survey of Drug Abuse (NHSDA); the National Immunization Survey; the State and Local Area Integrated Telephone Survey (SLAITS); the VSCP; and the Youth Risk Behavior Surveillance System (YRBSS).