Austin Jennifer L, Soeda Jennifer M
California State University, Fresno, CA, USA.
J Appl Behav Anal. 2008 Summer;41(2):279-83. doi: 10.1901/jaba.2008.41-279.
Evidence to validate the use of fixed-time (FT) reinforcer delivery (i.e., noncontingent reinforcement) with typically developing populations has been relatively rare in the behavioral literature. In those studies that have provided validation, reinforcer delivery schedules appeared to be prohibitively dense for sustained implementation of procedures. This study demonstrated the efficacy of using FT reinforcer delivery to reduce off-task behavior of 2 typically developing third graders using a teacher-selected schedule (FT 4 min). Immediate reductions in off-task behavior were observed for both children. Challenges in identifying the operative mechanism of FT schedules in natural settings are discussed.
在行为学文献中，能证实对正常发育人群使用固定时间（FT）强化物发放（即非连续性强化）的证据相对较少。在那些提供了验证的研究中，强化物发放时间表对于程序的持续实施而言似乎密集得令人望而却步。本研究证明了使用FT强化物发放，按照教师选择的时间表（FT 4分钟）来减少2名正常发育的三年级学生的任务无关行为的有效性。两名儿童的任务无关行为均立即减少。文中讨论了在自然环境中确定FT时间表作用机制时所面临的挑战。
