Computer-based personality judgments are more accurate than those made by humans
[Comparing] the accuracy of human and computer-based personality judgments, using a sample of 86,220 volunteers who completed a 100-item personality questionnaire. [the study] show that
(i) computer predictions based on a generic digital footprint (Facebook Likes) are more accurate than those made by the participants’ Facebook friends using a personality questionnaire;
(ii) computer models show higher interjudge agreement; and
(iii) computer personality judgments have higher external validity when predicting life outcomes such as substance use, political attitudes, and physical health; for some outcomes, they even outperform the self-rated personality scores.