Debiasing in motion: Boosting sound intuiting through animated video training

Recent debiasing studies have shown that an explanation of the correct solution to a reasoning problem can often improve the performance of initially biased reasoners. However, most of these training studies have relied on text-based interventions. While effective, they may have limitations in reaching broader audiences. In the present study, we tested whether an animated video training on classic reasoning tasks can improve participants' reasoning accuracy. Specifically, we examined the nature of the effect of video-based training: Whether, like previous text-based interventions, it not only improves deliberate performance but also directly boosts intuitive performance. We conducted six studies on three classic reasoning tasks: The base-rate neglect, conjunction fallacy, and bat-and-ball tasks. We used a two-response paradigm in which participants first gave an initial intuitive response, under time pressure and cognitive load, and then gave a final response after deliberation. In Studies 1, 2, and 3, participants received either video training, text training, or no training (control). In Studies 4, 5, and 6, participants of video and text groups were re-tested and received additional training two months later. Results of Studies 1, 2, and 3 indicated that animated video training is effective in boosting reasoning performance, as early as the initial intuitive stage. Results of Studies 4, 5, and 6 indicated that this effect persisted after two months. Overall, video training tended to outperform mere text training. These findings are consistent with the wider literature on multimedia research and can serve as a proof-of principle for a video debiasing training approach.