The third measure of judgment accuracy, external validity, focuses on how well a judgment predicts external criteria, such as real-life behavior, behaviorally related traits, and life outcomes (3). Participants’ self-rated personality scores, as well as humans’ and computers’ judgments, were entered into regression models (linear or logistic for continuous and dichotomous variables respectively) to predict 13 life outcomes and traits previously shown to be related to personality: life satisfaction, depression, political orientation, self-monitoring, impulsivity, values, sensational interests, field of study, substance use, physical health, social network characteristics, and Face- book activities (see Table S3 for detailed descriptions). The ac- curacy of those predictions, or external validity, is expressed as Pearson product-moment correlations for continuous variables, or area under the receiver-operating characteristic curve (AUC) for dichotomous variables.§