The Co-Parenting Behavior Questionnaire (CBQ) is an 86-item questionnaire that assesses co-parenting interactions and parenting skills of divorced parents from the viewpoint of the child. The CBQ contains 12 subscales reflecting 4 parental interaction variables, 4 father-parenting variables, and 4 mother-parenting variables. This questionnaire was administered to 68 children, aged 10 to 17, in order to assess the internal consistency and of each of the subscales and the predictive validity of the CBQ. Cronbach's alpha coefficients for the CBQ scales ranged from .82 to .93 after five of the initial items were deleted. The CBQ scales as a set accounted for between 15% and 36% of the variance in the following child behavior measures: total behavior problems (parent and child report), self-esteem (child report), acting out (parent and child report), antisocial behavior (child report), headstrong behavior (child report), and anxiety/depression (child report). The Mother and Father Discipline scales did not demonstrate significant correlations with the child behavior measures, nor did the Parental Communica-The current study was completed in partial fulfillment of the requirements for the Master of Science in Psychology by Katherine M. Macie, MS, under the supervision of Arnold L. Stolberg, PhD.