Abstract
The experimenters examined two different levels of acquisition criteria-Set and Operant Analysis-to assess acquisition and response maintenance of tact operants for four participants. Set Analysis involved replacing acquired operants at a set level, whereas Operant Analysis involved replacing acquired operants at an individual operant level. All participants required fewer instructional trials to acquire tacts under the Operant Analysis condition. Three participants maintained a similar number of operants in both conditions, whereas one participant maintained more operants under the Set Analysis condition.