--- - |2 Individuals who engage in problem behavior may also engage in precursor behavior maintained by the same functional reinforcers as the more severe target problem behavior. This study replicates and extends previous research by examining precursor assessments and interventions with three preschool‐aged children. We conducted assessments to identify precursor behavior, and conducted subsequent functional analyses targeting the precursor behavior. We then implemented function‐based interventions to address the precursor behavior, resulting in reductions in precursor behavior and continued low or zero rates of severe problem behavior. - Journal of Applied Behavior Analysis, Volume 51, Issue 4, Page 879-889, Fall 2018.