Data-based decision making is all the rage. Secretary of Education Arne Duncan (2009) has emphatically declared, "I am a deep believer in the power of data to drive our decisions. Data gives us the roadmap to reform. It tells us where we are, where we need to go, and who is most at risk." In the past few years, all 50 states have adopted most or…

Data use and decision-making--these two phrases have appeared together in probably hundreds of education articles and have been the topic of a host of presentations during the past decade. In addition, research studies have confirmed the importance of data-informed decision-making to school improvement. Thus, school leaders have found it makes…