Hart's research focuses on the use of evidence-based policymaking, program evaluation, and policy analysis. Overarching themes in Hart's writings include the role of transparency and accountability, and the use of evidence by federal legislators and agencies. Hart serves as a member of the American Evaluation Association (AEA) and Chair of the Evaluation Policy Task Force. He was elected to the Eastern Evaluation Research Society (EERS) Board of Directors in 2016 and to the Washington Statistical Society Board in 2018.
Evaluates federal government usage and availability of data to determine policy effectiveness. Argues that the government must make data more available for analysis, and commit to transparency with how information is gathered and used.
Evaluates the use of evidence in Congress. Identifies different types of barriers within the institution that impede evidence use.
Evaluates initiatives to use evidence to improve government function in the George W. Bush and Barack Obama administrations. Provides insight in how future initiatives may learn from past experiences.