AN INSTRUMENT WAS DEVELOPED THAT COULD BE USED FOR ESTABLISHING THE CORE OF PROFESSIONAL KNOWLEDGES AND ABILITIES REQUIRED IN TRAINING PROGRAMS FOR VOCATIONAL TEACHERS IN FIVE AREAS. THE DISCIPLINES REPRESENTED IN THE PROCESS OF IDENTIFICATION INCLUDED (1) TRADE AND INDUSTRIAL EDUCATION, (2) BUSINESS EDUCATION, (3) HOME ECONOMICS EDUCATION, (4) AGRICULTURE EDUCATION, AND (5) DISTRIBUTIVE EDUCATION. PROFESSIONAL COURSES REQUIRED FOR THE PREPARATION OF VOCATIONAL TEACHERS WERE REVIEWED, AND A COMPOSITE LISTING WAS MADE OF KNOWLEDGES AND SKILLS WHICH WERE UNIQUE TO THE DISCIPLINES BEING STUDIED. WITH THE HELP OF CONSULTANTS, KNOWLEDGES AND SKILLS TO BE INCLUDED IN THE INSTRUMENT WERE SELECTED. THE 200 COMPONENTS OF THE FINAL LISTING WERE THEN INCORPORATED IN THE INSTRUMENT USING LIKERT SCALES TO RATE THE NEED FOR EACH KNOWLEDGE AND SKILL IN THE WORKER'S JOB. THE COMPLETED INSTRUMENT WAS DEEMED READY FOR THE FIELD TESTING PHASE. (GD)