Abstract
Mothers of twenty-four noncompliant, clinic-referred, preschool children were trained to use either a warned or unwarned time-out procedure in a clinic analog setting to suppress child noncompliance to commands. Warnings respecified the command to be followed and labeled the time-out procedures were equally effective at increasing child compliance. However, warned time-out procedures were associated with fewer actual time-outs than unwarned time-out procedures. The potential benefits of warned time-out procedures are discussed and future research needs are indicated.