For grantees providing Teen Pregnancy Prevention (TPP) services or delivering programs, surveys are a common tool for understanding how participants experience that service or program. Even in our daily lives, people and organizations ask us regularly about our experience with services and products, our opinions about key issues, and our thoughts about our own behaviors or the behaviors of others. As a result, surveys appear to be a simple tool for gathering information; however, constructing a high-quality survey can be complex. This tip sheet guides grantees of the Office of Population Affairs’ TPP Program through the process of designing survey instruments to support the aims of their program evaluations.