Educators at all levels are being asked to collect various forms of evidence about the impact of actions upon results. Evidence from a variety of sources is to be added to experience, perception, and other judgmental skills to form more objective decisions. This is known as data-driven practice.

Within this section, library media specialists and technology specialists are presented with an overall scheme of collecting evidence upon which the program can be measured and used to continuously monitor the impact they are having.

The section begins with the encouragement to think in terms of collecting ongoing data that can be used at any time. Second, throughout the book, there are evidence collection techniques that can be used periodically as various program initiatives occur. Third, action research projects can be created to answer questions that arise about the effectiveness of particular program elements.