This guide presents ways for practitioners to use Chapter 1 achievement data to better understand and evaluate elements of a Chapter 1 program. A variety of types and levels of questions can be addressed with achievement data. Combining standardized achievement test scores with data from the program and from the regular classroom greatly increases…

Identifies situations in which there is disparity between coefficients calculated from aggregate versus individual level data. Determines the magnitudes of these discrepancies, and discusses the implications for test score reporting and policy decisions based in whole or in part on the aggregate level relationships and discrepancies identified.…