People whose personal or professional position gives them a knowledgeable perspective on the nature and scope of a social problem or a target population and whose views are obtained during an assessment or evaluation. For arts-based civic engagement work, key informants may include community members, organizers, elected officials, or cultural group leaders. Adapted from Lipsey: Rossi, Peter H., Mark W. Lipsey, and Howard E. Freeman. 2004. Evaluation: A Systemic Approach. Thousand Oaks, CA: Sage Publications.