Source of advice affects subject weight on advice (Experiment 1). Each bar chart depicts results of the mixed effects regression model on N = 5083 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 shows the effects using Model 1 from Table S2, Panel B shows the effects using Model 2 from Table S2.