Understanding how and why adding valid predictors can decrease the validity of selection composites: A generalization of Sackett, Dahlke, Shewach, and Kuncel (2017)

Abstract It is usually assumed that adding more valid predictors will increase the predictive power of a selection test battery. Sackett, Dahlke, Shewach, and Kuncel showed that when selection tests are combined using unit weights, adding a valid predictor can lead to a decrease in validity. Situati... View More