A primary challenge for alibi-generation research is establishing the ground truth of real-world events of interest. In the current study, we used a smartphone app to record data on adult participants (N = 51) for a month prior to a memory test. The app captured accelerometry data, GPS locations, and audio environments every 10 min. After a week-long retention interval, we asked participants to identify where they were at a given time from among four alternatives. Participants were incorrect 36% of the time. Furthermore, our forced-choice procedure allowed us to conduct a conditional logit analysis to assess the different aspects of the events that the participants experienced and their relative importance to the decision process. We found strong evidence that participants confuse days across weeks. In addition, people often confused weeks in general and also hours across days. Similarity of location induced more errors than similarity of audio environments or movement types.

不在场证明生成研究的主要挑战是建立真实世界感兴趣事件的基本事实。在当前的研究中，我们使用智能手机应用程序记录成年参与者的数据 ( N= 51) 在记忆测试前一个月。该应用程序每 10 分钟捕获一次加速度测量数据、GPS 位置和音频环境。在为期一周的保留间隔后，我们要求参与者从四个备选方案中确定他们在给定时间的位置。参与者有 36% 的时间是错误的。此外，我们的强制选择程序允许我们进行条件逻辑分析，以评估参与者经历的事件的不同方面及其对决策过程的相对重要性。我们发现了强有力的证据表明参与者在几周内混淆了几天。此外，人们经常混淆一般的周和几天的小时。位置的相似性比音频环境或运动类型的相似性引起更多的错误。