In 2004, forensic experts misidentified the perpetrator of a series of train bombings in Madrid, Spain, erroneously concluding that fingerprints collected from evidence matched those of a suspect who was later cleared. An investigation into the mistake found that fingerprint experts' stress, among other human factors, played a role. In a recent paper in , Yale researchers assessed how stress might affect the performance of and the quality of their decisions.
Drawing from several fields (including , medicine, and management), the researchers identified three factors that can affect forensic expert decision-making: the nature of the decision, such as the complexity of the evidence in question; , including the expert's level of anxiety or tolerance of ambiguity; and the work environment. They then applied an evidence-informed structure for understanding workplace stress that breaks down its components and their effects. "This framework can help stakeholders identify ways to manage stress at work and test how effective those approaches are," said Mohammed Almazrouei, lead author of the paper and a postdoctoral fellow in the lab of Ifat Levy, a professor in the Department of Comparative Medicine at Yale School of Medicine.
The researchers suggest using terms like stress "management" or "optimization" rather than "reduction," as the latter term suggests that workplace stressors should be uninformedly decreased. The paper emphasized that some types of stress can have positive effect.