This study was conducted to evaluate the usefulness of discriminant analysis in classifying vocational and technical curricular groups in a single secondary school setting. The researchers compared scores on the Dailey Vocational Test and the Minnesota Vocational Interest Inventory in terms of the selection of vocational and technical courses by 585 Grade 11 and 12 students in Kansas City, Missouri. After finding a statistically significant difference between vocational groups, the study concluded that discriminant analysis can be valuable in classifying students with aptitude and interest variables. (BH)