Guidelines are presented for developing a career counseling instrument which may be used to identify and select students who can best benefit from a particular vocational program. Instrument construction takes approximately two hours and entails selecting appropriate criteria for student evaluation (such as grades, attendance, attitude, mental level, and program interest) and assigning point values to each one. The student is rated on a scale for each of the criteria, resulting in the attainment of points for each scale as well as a total point count for the instrument. Data for the instrument is obtained from student records and teacher evaluation. Sample forms are included. (Author/RG)