Trust everybody, but always cut the cards: An exercise for exploring truth bias and deception detection

This activity helps students examine key elements of truth-default theory. Specifically, by participating in a deception detection game, which secretly prompts different teams to be more or less suspicious, students learn that people’s tendency to be “truth-biased” leads to lower accuracy when judging actual lies and higher accuracy when judging actual truths (i.e., “the veracity effect”).