Investigated the utility of a parent report measure designed specifically for behavior screening in the pediatric primary care setting for use with disadvantaged children and families. Results indicated that the Pediatric Symptom Checklist was significantly related to scores derived from the Child Behavior Checklist. Receiver Operator Characteristic analysis indicated the need for modification of the cutting score previously established with middle-class children. A model for screening children for psychopathology within the structural-organizational constraints of the pediatric primary care setting is presented.