THE MAJOR OBJECTIVES WERE TO DEVELOP CRITERIA FOR THE EVALUATION OF SCHOOL ADMINISTRATION, TO DEFINE THE NATURE OF THE JOB, AND TO DEVELOP AN INSTRUMENT FOR THE SELECTION OF ADMINISTRATORS. THE ELEMENTARY SCHOOL PRINCIPAL WAS CHOSEN FOR THE STUDY BECAUSE OF THE HOST OF PROBLEMS RELATED TO THE CONDUCT OF AN EDUCATIONAL PROGRAM, INCLUDING THE SELECTION, TRAINING, AND SUPERVISION OF PERSONNEL, THE MAINTENANCE OF PHYSICAL FACILITIES, THE CONTROL OF SUPPLIES, AND RELATIONSHIPS BETWEEN THE SCHOOL AND THE COMMUNITY. A SIMULATION OF AN ELEMENTARY SCHOOL CREATING A STANDARD ADMINISTRATIVE SITUATION WITH SPECIAL JOB SAMPLE TESTS, KINESCOPES, AND TAPE RECORDINGS WAS USED. TESTS OF ABILITIES, KNOWLEDGE, INTERESTS, AND PERSONALITY WERE SELECTED, AND OTHER INSTRUMENTS WERE CONSTRUCTED TO OBTAIN INFORMATION REGARDING THE EXPERIENCE, TRAINING, AND PERFORMANCE OF THE SUBJECTS. CENTERS WERE SET UP IN VARIOUS PARTS OF THE COUNTRY FOR TESTING 177 PRINCIPALS AFTER A PRELIMINARY TEST OF 55 PRINCIPALS. THE RESULTING DATA WERE ANALYZED AND COMPARED WITH THE RATINGS OF THE PRINCIPALS' PERFORMANCES MADE BY THEIR OWN SUPERIORS AND WITH OTHER MEASURES OF THEIR SUCCESS AS ADMINISTRATORS. THE ANALYSIS INDICATED THAT SIMULATION OFFERS AN EXCELLENT METHOD OF TEACHING SKILLS TO INSERVICE SCHOOL PRINCIPALS AND SUPERINTENDENTS, EXPLAINING THE NATURE OF THE JOB, AND SELECTING SCHOOL ADMINISTRATORS. (GC)