Citation: Kiernan, Nancy Ellen (2005). Evaluating an event: when and how. Tipsheet #76, University Park, PA: Penn State Cooperative Extension. This document is part of a series of Tipsheets that contain practical evaluation illustrations based on current research and developed by Nancy Ellen Kiernan at Penn State Cooperative Extension. This document focuses on how and when to evaluate an event. Copyright 2005 The Pennsylvania State University#evaluation #ExtensionEducationEvaluation #Event #HowTo