The longitudinal study examined the dropout rate of a group of Chicano students who were registered 7th graders in the Tooele School District in the 1967-68 school year. If these students made normal progress, they graduated from high school at the end of the 1972-73 school year. All Spanish-surname students found on the 7th grade rosters of 1967-68 in the district were identified using a Spanish-surname list of the U.S. Census Bureau. Of the 60 students originally identified, 11 were dropped due to their transferring to another school or having died. School records were used to obtain data. About half of the 49 students (47%) dropped out of school between the 7th and 12th grades. It was found that two distinct groups of dropouts could be identified: the low achiever from the early elementary grades, and the student who performed normally until about grade six and thereafter performed less well. Other findings included: girls dropped out at a higher rate than boys; 70% of the dropouts left school after the 10th grade (39% left in the 12th grade); marriage was the most common reason given for girls dropping out while academic failure was the most common reason given for boys; dropouts tended to miss more school than graduates; dropouts had a tendency to score lower on I.Q. instruments than graduates; and both parents, mothers and fathers, of graduates tended to be more educated than the parents of dropouts. (NQ)