The purpose of the project was to determine the most effective teaching methods for reaching the Mexican American population of El Paso, Texas, with Extension educational programs. An initial study in 1962 brought into focus characteristics and situations of Mexican American families for the purpose of evaluation. One population was subjected to heavy Extension activities including mass media, mailed information, and formalized classes in home economics and health. A second population was subjected only to those sources of mass media available to the individual families, such as radio, television, and the newspaper. The 1964 evaluation study indicated that the information mailed to the first population was the most successful disseminator of information, followed by television. The second population indicated that of the available media, television was the most effective. In the terminal evaluation of 1968, mailed information and television were almost identical in effectiveness in reaching homemakers, closely followed by the newspaper and classes. (DK)