Source of advice affects subject weight on advice (Experiment 2). Each bar chart depicts results of the mixed effects regression model on N = 4,905 observations. All models include accuracy as a control. Error bars correspond to the standard error of the estimated effect. (a) shows the main effect of advice source on WOA; the difference across conditions is significant (P < 0.001). (b) shows the effect of advice source on WOA across levels of difficulty; all differences are significant (P < 0.05). Panel A is for Model 1 in Table S3, Panel B is for Model 2.