The purpose of the study was to examine the effectiveness of the micro‐expressions training tool (METT) in identifying and using micro‐expressions to improve lie detection. Participants (n = 90) were randomly assigned to receive training in micro‐expressions recognition, a bogus control training, or no training. All participants made veracity judgements of five randomly selected videos of targets providing deceptive or truthful statements. With the use of the Bayesian analyses, we found that the METT group did not outperform those in the bogus training and no training groups. Further, overall accuracy was slightly below chance. Implications of these results are discussed.

中文翻译：

---

测试微表情训练工具：它是否可以改善测谎？

这项研究的目的是检验微表情训练工具（METT）在识别和使用微表情改善测谎能力方面的有效性。随机分配参与者（n = 90）接受微表情识别训练，伪造控制训练或不进行训练。所有参与者对五个随机选择的提供欺骗性或真实陈述的目标视频进行了真实性判断。通过使用贝叶斯分析，我们发现METT组的表现不及假培训组，也没有培训组。此外，总体准确性略低于机会。讨论了这些结果的含义。