Abstract
The present study investigated the justifications' effects, presented in children's stories, on the installment and maintenance of targeted behaviors: to copy, to answer and to present the exercise and competitive activities. Four children were exposed to three phases. In Phase 1, baseline, the registration of the target behaviors' events was made. Phase 2 was constituted of six steps. In each step, at the beginning, the experimenter would read a children's story with Type 5 justification that indicated the advantages of studying mathematics in the Steps 1, 2 and 5, and portuguese in the Steps 3, 4 and 6. Then, the teacher would write the exercise on the board and would request the students to copy, to answer and to present the exercise finished. Afterwards, the registration of the target behaviors' events was made for 30 minutes. In Phase 3 (Follow-up), fulfilled two months after Phase 2, it wasn't presented stories with justifications. The registration of targeted behaviors was made. In Phase 2, it occurred higher duration of activities to copy and to answer the exercise and lower duration of competitive activities. In Phase 3, occurred the opposite. It's suggested that, besides justifications, other variables contributed to maintain the observed behaviors.
Keywords:
Rule governed behavior; reinforcement contingencies modeled behavior; justifications; immediate consequences; children's story
