The purpose of this study was to develop cost-effective parent training materials for use with specific behavior problems of normal preschool children. The training materials developed were evaluated using: (1) objective measures before and after treatment, (2) random assignment to experimental or delayed-treatment control groups, (3) cost-effectivenss information, (4) one-month followup data, and (5) adequate description of procedures. Two experiments were conducted in which mothers were given brief training in altering incidents of either whining or noncompliance. It was reasoned that a pediatrician building on an already existing relationship with a child and his parents would find such a technique very useful.