THE BASIC PURPOSES OF THIS STUDY WERE (1) TO DETERMINE THE EXTENT TO WHICH THE UNIVERSITY OF MICHIGAN AUDIOLINGUAL SELF-INSTRUCTIONAL COURSE IN SPOKEN AMERICAN SPANISH COULD ASSIST THE ADULT STUDENT TO LEARN TO CONTROL THE SOUND SYSTEM OF THE LANGUAGE BEING STUDIED AND (2) TO PROVIDE EVIDENCE OF THE EFFECTIVENESS OF THE COURSE OUTSIDE OF A LABORATORY SITUATION. THIRTEEN TEACHERS PARTICIPATED IN THE COURSE AS STUDENTS ON A VOLUNTARY BASIS. A QUALIFIED SPANISH TEACHER WAS EMPLOYED TO SUPERVISE AND GUIDE THEM. NONE OF THE STUDENTS COMPLETED THE COURSE. FAILURE TO FINISH APPEARED DUE TO (1) CONTINUED EFFORTS TO IMPROVE THE COURSE WHICH RESULTED IN NEARLY DOUBLING THE TIME REQUIRED FOR COMPLETION, (2) PART-TIME STUDY WHICH LIMITED TIME FOR WORK ON COURSE, AND (3) LACK OF MEANINGFUL KNOWLEDGE OF PROGRESS WHICH CAUSED LOSS OF MOTIVATION. RECOMMENDATIONS MADE WERE THAT--(1) THE COURSE SHOULD BE ADMINISTERED IN A FORMAL CLASSROOM, (2) MOTIVATION SHOULD BE IMPROVED BY PROVIDING MEANINGFUL FEEDBACK, AND (3) THE FEWER FRAMES SHOULD BE USED TO REDUCE REPETITIOUSNESS AND THE LENGTH OF TIME REQUIRED TO TAKE THE COURSE. (AL)