In this study, we examined whether infant temperament predicted study dropout at 3.5 and 7 months and whether dropout was stable across time. Dropout was measured across four experimental tasks (free-play, ERP, still-face, and eye tracking). Temperament was not related to dropout at either timepoint. Dropout was not stable across time, nor was it stable across tasks. These findings suggest that individual differences in temperament are not systematically related to study completion across experimental tasks with varied requirements. These findings additionally suggest that dropout is not consistent across tasks, which may support the utility of multi-study data collection methods.

在这项研究中，我们检查了婴儿气质是否会预测 3.5 个月和 7 个月时的辍学，以及辍学是否随时间稳定。Dropout 是在四个实验任务（自由游戏、ERP、静止脸和眼动追踪）中测量的。在任何一个时间点，气质都与辍学无关。Dropout 跨时间不稳定，跨任务也不稳定。这些研究结果表明，气质的个体差异与具有不同要求的实验任务的研究完成情况并没有系统地相关。这些发现还表明，不同任务之间的辍学并不一致，这可能支持多项研究数据收集方法的实用性。