IN A SPECIALLY ORGANIZED NURSERY SCHOOL SETTING, DISADVANTAGED CHILDREN BETWEEN TWO AND ONE-HALF AND THREE AND ONE-HALF YEARS OF AGE, EXPERIENCED CONTINGENCY MANAGEMENT (CM) PROCEDURES TO MODIFY VERBAL BEHAVIOR. IN ONE ROOM OF A LARGE, PRIVATE DWELLING CONVERTED INTO A NURSERY SCHOOL, REQUISITE ANTECEDENT BEHAVIORS (RAB) WERE ESTABLISHED IN EACH CHILD, WITH REINFORCEMENT PROVIDED BY THE DISPENSATION OF METAL WASHERS. TOPOGRAPHICAL ACCURACY OF THE CHILD'S RESPONSES WERE ENCOURAGED THROUGH THE SIMPLEST, MOST DIRECT CONTROLS. RESPONSES WERE THEN BROUGHT UNDER THE CONTROL OF OTHER, MORE REALISTIC STIMULI. SKINNER'S TERMS "TACT" AND "MAND" ARE UTILIZED TO DESCRIBE A TYPICAL SESSION ON TACT TRAINING. A CRITERION TEST WAS ADMINISTERED AND THE DESIRED BEHAVIOR WAS REACHED WITH ALL SUBJECTS AFTER A MEAN OF SIX SESSIONS. CONTINGENCY MANAGEMENT PROCEDURES AND TOKEN ECONOMY ARE BELIEVED TO BE HIGHLY EFFECTIVE IN MAINTAINING AND STRENGTHENING MODIFIED VERBAL BEHAVIOR. IT WAS CONCLUDED THAT--(1) DISADVANTAGED CHILDREN RESPOND TO CM PROCEDURES AS WELL AS MIDDLE CLASS CHILDREN DO, (2) THE STRATEGIES INVOLVED IN RAB TRAINING AND TRANSFERS TO GENERAL GROUP ACTIVITIES APPEAR TO BE SOUND, AND (3) VERBAL BEHAVIOR IN VERY YOUNG CHILDREN APPEARS TO BE AMENABLE TO MODIFICATION UNDER CM PROCEDURES. THIS PAPER WAS PRESENTED AT THE AMERICAN PSYCHOLOGICAL ASSOCIATION CONVENTION, WASHINGTON, D.C., SEPTEMBER 1, 1967. (PR)