Citation: Kiernan, Nancy Ellen (2002) Evaluating Sources of Information: Tipsheet #14, 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 creating questions with dual data. Copyright 2002 The Pennsylvania State University #Questions #HowTo #Sources #Survey #ExtensionEducationEvaluation #Information