Previous researchers have found brief versions of preference assessments correspond to outcomes of longer preference assessments, and that varying levels of problem behavior occur in different preference assessments. Researchers conducted two studies to examine 1-, 2-, and 5-min duration outcomes of the free-operant preference assessment and evaluated the correspondence between the shorter and longer session durations and to identify frequency of problem behavior at each duration. Researchers also assessed relative reinforcing efficacy of the highest preferred stimulus from the shortest duration sessions. Moderate to high correlations were found between the 1- and 2-min sessions and 1- and 5-min sessions across six of eight participants diagnosed with autism spectrum disorder in Study 1 and two of three participants in Study 2. Furthermore, all highest preference stimuli identified in the shortest duration assessment served as reinforcers. Researchers found problem behavior generally occurred more in longer duration sessions.

中文翻译：

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自由操作偏好评估的评估：不同会话持续时间和问题行为的结果。

以前的研究人员发现，偏好评估的简短版本对应于长期偏好评估的结果，并且在不同的偏好评估中会出现不同程度的问题行为。研究人员进行了两项研究，以检查自由操作偏好评估的 1、2 和 5 分钟持续时间结果，并评估较短和较长会话持续时间之间的对应关系，并确定每个持续时间的问题行为频率。研究人员还评估了最短持续时间的最高首选刺激的相对强化效果。在研究 1 中被诊断患有自闭症谱系障碍的八名参与者中的六名和研究 2 中被诊断出患有自闭症谱系障碍的两名参与者中，在 1 分钟和 2 分钟的会话以及 1 分钟和 5 分钟的会话之间发现了中度到高度的相关性。此外，在最短持续时间评估中确定的所有最高偏好刺激都用作强化物。研究人员发现，问题行为通常发生在持续时间较长的会话中。