“Her big insight, the first one, was that the 54-percent deception-accuracy figure was averaging across truths and lies,” Levine said. “You come to a very different understanding if you break out … how much people are right on truths, and how much people are right on lies.” What he meant was this. If I tell you that your accuracy rate on Levine’s videos is right around 50 percent, the natural assumption is to think that you are just randomly guessing—that you have no idea what you are doing. But Park’s observation was that that’s not true. We’re much better than chance at correctly identifying
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