AN INVESTIGATION WAS MADE INTO THE EFFECTS OF AN ELEMENTARY SCHOOL-FALLOUT SHELTER UPON THE EDUCATIONAL CLIMATE WITHIN THAT SCHOOL AS COMPARED TO THE CLIMATES OF WINDOWLESS OR CONVENTIONAL SCHOOLS. THE ABO SCHOOL IN ARTESIA, NEW MEXICO, WAS BUILT WITHOUT WINDOWS AND ENTIRELY BELOW GROUND EXCEPT FOR THE ENTRY. INITIAL CONSTRUCTION COSTS WERE ABOUT 21 PERCENT HIGHER THAN FOR A CONVENTIONAL STRUCTURE. CUSTODIAL SERVICES WERE SOMEWHAT LOWER THAN FOR OTHER SCHOOLS IN ARTESIA. TEACHER VARIBLES WERE EXAMINED AND ANALYZED. IT WAS FOUND THAT THE ABO TEACHERS WERE VERY MUCH LIKE THE OTHER TEACHERS IN ARTESIA. THE STUDY OF PUPIL VARIABLES INCLUDED ANXIETY AND ATTENDANCE. NO EVIDENCE WAS FOUND TO INDICATE THAT THE ABO PUPILS WERE MORE ANXIOUS OR HAD ANY MORE ATTENDANCE PROBLEMS THAN PUPILS ATTENDING CONVENTIONAL OR WINDOWLESS SCHOOLS IN ARTESIA. NO EVIDENCE WAS FOUND DURING A 2-YEAR PERIOD TO RAISE ANY QUESTIONS ABOUT THE FEASIBILITY OF COMBINING A FALLOUT SHELTER WITH THE EDUCATIONAL FUNCTION. (TC)