The purpose of this study was to determine whether a difference exists between the grade achievement of Mexican American and Anglo college students. The study was conducted at the University of Texas at El Paso. A stratified random sample of 480 students equally divided between Anglos and Mexican Americans was drawn from unmarried full-time students who attended the university in the fall of 1969. Stratification was made on the basis of ethnic group, sex, college class, and college enrolled in. Major findings were that Mexican American college students do have significantly lower grade point averages than Anglo students enrolled in the same university; when the entire sample was considered, no significant differences were found when the type of high school attended was considered; and a comparison of grade point averages in the 5 colleges showed no significant differences between the groups. All findings were tentative pending the discovery of 25 missing samples. (PS)