Noncontingent or response-independent access to matched, competing stimuli has been shown to be effective to decrease automatically maintained challenging behavior. Despite research on its effectiveness, various schedules of noncontingent access to matched competing stimuli have not been directly compared. The purpose of the current study was to compare the effectiveness of and preference for continuous, dense (fixed-time 30 s), and lean (fixed-time 60 s) schedules of noncontingent access to matched competing stimuli to decrease automatically maintained stereotypy exhibited by two children with autism. We also conducted a within session analysis of the lean condition to examine possible mechanisms responsible for the effects of the procedure. The results showed that the continuous schedule was most effective and most preferred to reduce stereotypy for both participants. A social validity measure indicated that the participant's caregivers approved of and preferred the continuous schedule.

中文翻译：

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比较连续、密集和精益的非偶然访问匹配的竞争刺激以减少刻板印象的时间表

对匹配的、竞争性刺激的非偶然或独立于反应的访问已被证明可有效减少自动保持的挑战性行为。尽管对其有效性进行了研究，但尚未直接比较各种非偶然访问匹配的竞争刺激的时间表。本研究的目的是比较连续、密集（固定时间 30 秒）和精益（固定时间 60 秒）时间表的有效性和偏好，以非偶然地访问匹配的竞争刺激，以减少由以下行为表现出的自动维持的刻板印象两个患有自闭症的孩子。我们还对精益条件进行了会话内分析，以检查导致程序影响的可能机制。结果表明，连续时间表对于减少双方参与者的刻板印象最为有效，也是最受青睐的。一项社会效度测量表明，参与者的照顾者批准并更喜欢连续的时间表。