There is a need for improved techniques for selection of students and prediction of student success in vocational-technical education. This study concerns identification of the kinds of readily available data which may be used to predict student success in Pennsylvania area vocational-technical schools and to differentiate among the vocational-technical curriculums. Such data should be useful in helping students to decide whether or not to attend a vocational school and what course options would be most appropriate. A literature review showed no universality of methods, although it appeared that the use of a multiple set of predictors was preferable to single predictor variables. The purpose of this investigation was to analyze existing information about a sample of vocational school students in order to determine whether there were data readily available to school counselors which would be useful in planning study at the State vocational-technical schools. Only information already available in the junior high schools was used. Findings from analysis of the data caused the researchers to question the advisability of using the data studied for State selection methods. Further research is suggested to investigate both these and other data, if school planning is to make use of the study findings. Findings are appended in 28 tables. (MF)