This document, prepared by the Evaluation System of the Public Schools of the District of Columbia, is the technical report of the results of analyses of factors affecting reading achievement for elementary students for the year 1976-77. The chapters include a discussion of the purpose and scope of the study; the methodology used; characteristics of the 1976-77 classes; results based on regression analyses, evaluations of reading programs in each grade level; and conclusions concerning reading achievement and testing, interest in reading, and evaluation of selected types of reading programs. Included are replicas of the classroom/student background form and the reading program form. (TJ)