THE PRESENT STUDY REPRESENTS AN EXTENSION OF A STUDY WHICH DEALT WITH THE LATER ADJUSTMENT OF INDIVIDUALS DISCHARGED FROM A STATE INSTITUTION FOR THE MENTALLY RETARDED. THIS EFFORT REWORKED AVAILABLE DATA TO DEVELOP A MORE EFFICIENT TECHNIQUE OF PREDICTION AND TO STUDY FURTHER INTERACTIONS AMONG THE VARIOUS CHARACTERISTICS OF THE GROUP. IN ADDITION, IT COMPARED THE ABOVE POPULATION WITH THE RATE OF INSTITUTIONALIZATION FROM DISTRICTS HAVING SPECIAL CLASSES AND DISTRICTS WHICH LACKED SUCH CLASSES, AND COMPARED POPULATION NOW IN THE INSTITUTION WITH A COMPARABLE POPULATION IN DAY CLASSES. THESE DATA WOULD BE USED FOR LATER FOLLOWUP STUDIES. (JL)