Citation: Kiernan, Nancy Ellen (2001). Crafting Questions With Less Bias: Tipsheet #35, 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 whether questions that require a yes-no response are a poor choice. Copyright 2001 The Pennsylvania State University#Survey #HowTo #ExtensionEducationEvaluation #Questions #Bias