Third in a series, the monograph summarizes the key evaluation issues, design approaches, and statistical techniques used in conducting the 1980-1983 impact evaluation of Indian Education Act Title IV Part A programs. The monograph describes the major problems in evaluating the program to determine the degree of its positive contribution to meeting the special educational and culturally related academic needs of American Indian/Alaska Native children and youth. The overall evaluation comprises four studies: the Preliminary and Exploratory Study, the Alternative Resources Study, the Small Projects Study, and the Local Projects Impact Study (the major focus of the evaluation). The monograph also discusses the six basic types of information used in the studies (descriptive data about project operations and funding; mediating variables that explain impact measures; confounding variables; and impact data on students, parents and Indian communities, and school districts), and describes in detail the design for sampling, gathering, and analyzing the data. The monograph includes a discussion of major research questions, research approaches, and design issues; and explains the implementation of the evaluation design and methods. (SB)