Errorless compliance training, a noncoercive intervention for improving child compliance, was evaluated in a multiple baseline across-subjects design with 12 oppositional children (ages 2-7 years) and their brain-injured parents, who suffered from cognitive deficits, impulsivity, and/or emotional instability. Generalized and durable increases were observed in child compliance after treatment. Pre/post improvements were also noted on a measure of parent self-esteem. Errorless compliance training may be well suited to intervention with parents with cognitive and behavioral impairments that decrease their potential to benefit from traditional parenting approaches.