Some States (notably New York, Pennsylvania, and Oregon) collect information which provides evidence or indicators that their school programs are doing what they are intended to do. For example, finding out how many college preparatory students are still in college and how many vocational students are gainfully employed in the vocation for which they prepared one year after high school graduation. Educational indicators are gathered either from questionnaires sent to parents and students, or evolved from information already being collected at district, county, State, or federal levels. Indicators can greatly assist local school administrators, as well as the lay public, by allowing them to view the existing educational program in a perspective different from the traditional one. The purpose of this monograph is to present a rationale for the use of educational indicators as significant components in the evaluation of school programs. (Author/JF)