Department of Psychology, Brock University, 500 Glenridge Ave., Saint Catharines, ON, L2S 3A1, Canada.
Psychol Res. 2023 Apr;87(3):686-703. doi: 10.1007/s00426-022-01689-5. Epub 2022 Jun 16.
In three separate experiments, we examined the reliability of and relationships between self-report measures and behavioral response time measures of reward sensitivity. Using a rewarded-Stroop task we showed that reward-associated, but task-irrelevant, information interfered with task performance (MIRA) in all three experiments, but individual differences in MIRA were unreliable both within-session and over a period of approximately 4 weeks, providing clear evidence that it is not a good individual differences measure. In contrast, when the task-relevant information was rewarded, individual differences in performance benefits were remarkably reliable, even when examining performance one year later, and with a different version of a rewarded Stroop task. Despite the high reliability of the behavioral measure of reward responsiveness, behavioral reward responsiveness was not associated with self-reported reward responsiveness scores using validated questionnaires but was associated with greater self-reported self-control. Results are discussed in terms of what is actually being measured in the rewarded Stroop task.
在三个独立的实验中，我们考察了自我报告测量和行为反应时间测量奖励敏感性的可靠性和关系。使用奖励性 Stroop 任务，我们表明，在所有三个实验中，奖励相关但任务不相关的信息干扰了任务表现（MIRA），但 MIRA 的个体差异在会话内和大约 4 周的时间内都是不可靠的，这清楚地表明它不是一个好的个体差异测量方法。相比之下，当任务相关信息得到奖励时，即使在一年后使用不同版本的奖励 Stroop 任务检查，表现收益的个体差异也非常可靠。尽管行为奖励反应性的测量具有很高的可靠性，但行为奖励反应性与使用经过验证的问卷报告的奖励反应性评分无关，但与更大的自我报告的自我控制能力有关。结果从奖励 Stroop 任务中实际测量的内容方面进行了讨论。
