EDITOR'S NOTE

In the January 2017 issue, The American Journal of Psychiatry published a correction stating that the article “Neural Predictors of Initiating Alcohol Use During Adolescence” by Lindsay M. Squeglia, Ph.D., et al. (doi:10.1176/appi.ajp.2016.15121587) was being extensively revised from the version initially published online August 19, 2016. Subsequent to that online publication, the authors presented their findings at a conference, where Dr. Matthias Guggenmos (Department of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin) brought to their attention that this strategy yields a biased estimate of predictive power. The authors determined that while their feature selection process was sound, the validation scheme in their original analytic pathway indeed resulted in an overestimation of the predictive accuracy of the models. The revised version that omits the claim of validation appears in this February 2017 issue. Included in the online edition as a data supplement is the previously published version marked to show the changes from that article to what appears in this issue.