THE PURPOSE OF THIS RESEARCH INVESTIGATION WAS TO DETERMINE THE APPROPRIATENESS OF CURRENT AVIATION STRUCTURAL MECHANIC S (STRUCTURES) SCHOOL, CLASS A, TRAINING FOR MENTAL GROUP IV PERSONNEL. THIS TRAINING CONSISTS OF A SEQUENCE OF THREE COURSES. IT WAS FOUND THAT 50 PERCENT OF THE GROUP IV STUDENTS WOULD HAVE BEEN DROPPED FROM TRAINING PRIOR TO THE COMPLETION OF THE SEQUENCE WHILE THE NORMAL ATTRITION RATE DOES NOT EXCEED ONE PERCENT IN ANY OF THE THREE COURSES. THE GROUP IV STUDENTS HAD THEIR GREATEST DIFFICULTIES WITH RELATIVELY ABSTRACT MATERIAL IN THE AREA OF MATHEMATICS AND PHYSICS. ON PERFORMANCE TESTS AND SHOP PROJECTS THEIR WORK WAS ON A PAR WITH THAT OF THE REGULAR STUDENTS. THE CURRENT TRAINING SEQUENCE DOES NOT SEEM TO BE SUITABLE FOR USE WITH GROUP IV STUDENTS. (THE DOCUMENT INCLUDES SEVEN TABLES.) THIS DOCUMENT IS AVAILABLE, AS AD-665-304, FROM THE CLEARINGHOUSE FOR FEDERAL SCIENTIFIC AND TECHNICAL INFORMATION, SPRINGFIELD, VIRGINIA 22151. MICROFICHE $.65. HARD COPY $3.00. 32 PAGES. (AUTHOR/LY)