On being sad and mistaken: mood effects on the accuracy of thin-slice judgments.

A series of studies explored how sadness impacts the accuracy of social judgments. In Study 1, induced sadness led to reduced accuracy in judgments of teacher effectiveness from brief samples of nonverbal behavior (thin slices). In Study 2, sad participants showed reduced accuracy in judging relationship type from thin slices as well as diminished judgmental efficiency. Study 3 revealed that higher Beck Depression Inventory scores were associated with diminished accuracy on the Profile of Nonverbal Sensitivity. Finally, Study 4 tested the possibility that sadness impairs accuracy by promoting a more deliberative information-processing style. As expected, accuracy was higher among participants in a sad mood condition who completed the judgment task while simultaneously performing a distracting cognitive load task.