AS THE FIRST PHASE IN DEVELOPING A TESTING PROGRAM FOR VOCATIONAL PROGRAMS IN IDAHO, STUDIES CONCERNED WITH WORKER CHARACTERISTICS IN A VARIETY OF OCCUPATIONS WERE REVIEWED. THE PROFESSIONAL LITERATURE WAS SURVEYED FOR STUDIES RELATING TO SUCCESS AND/OR MEMBERSHIP IN 28 OCCUPATIONS FOR WHICH TRAINING PROGRAMS EXIST IN IDAHO SCHOOLS. THE PURPOSE WAS TO REVIEW STUDIES WHICH WOULD IDENTIFY TESTS FOR USE IN AN EXPERIMENTAL BATTERY. ALL BUT TWO STUDIES WERE PUBLISHED IN THE LAST 10 TO 15 YEARS. THE TYPES OF TESTS USED MOST FREQUENTLY WERE INTEREST, APTITUDE, AND PERSONALITY TESTS, AND THESE CATEGORIES ARE DISCUSSED. REVIEW OF SPECIFIC STUDIES AND TESTS REGARDING THE CHARACTERISTICS RELATED TO SUCCESS OR MEMBERSHIP IN 28 OCCUPATIONS ARE PRESENTED FOR AIRPLANE MECHANICS, AUTO BODY FENDERMEN, AUTO MECHANICS, AUTO SERVICE STATION SPECIALISTS, BEAUTY OPERATORS, BOOKKEEPERS, CABINETMAKERS, DENTAL ASSISTANTS, DIESEL MECHANICS, DRAFTSMEN, ELECTRICAL APPLIANCE REPAIRMEN, ELECTRONIC TECHNICIANS, FARM MACHINERY REPAIRMEN, FORESTRY TECHNICIANS, GENERAL OFFICE CLERKS, INSTRUMENT REPAIRMEN, MACHINISTS, OFFICE MACHINE REPAIRMEN, POLICEMEN, PRACTICAL NURSES, PRINTERS, RADIO-TV REPAIRMEN, SALES CLERKS, SALESPERSONS, SECRETARIES, STENOGRAPHERS, UPHOLSTERERS, AND WELDERS. (PS)