This guide draws from numerous evaluation models to provide a frame of reference in the development and execution of an evaluation plan for pilot programs. Emphasis is on the development of an evaluation design; construction of instruments or the analysis and interpretation of results is not discussed. A selected bibliography for further in-depth…

Approximately 6,500 children are enrolled per year in the New York State Experimental Prekindergarten Program (PreK). In 1975-76 a longitudinal study was begun to determine the program's impact on the development of children while enrolled in the program and in the primary grades. Samples from a population of 5,245 four-year-old prekindergarten…