Aim and Background: Oppositional Defiant Disorder (ODD) is a gradual and chronic one always interacting with Cook’s interpersonal relationships and academic performance. Parenting is one of the effective methods for ODD, in which parents learn how to treat their children. The present study aimed to investigate the effectiveness of the Kazdin method for parenting on parent-child relationships among the students with ODD.

Methods and Materials: The study employed a quasi-experimental research with a pretest-posttest as well as 90-day follow-up and control group design. Of the students with ODD, based on the score above the cut-off point in the Achenbach Child Behavior Checklist (CBCL) and clinical interview by school’s consultant 30 students were selected and randomly divided into two experimental and control groups (each group contained 15 participants). The experimental group received the Kazdin method for parenting for twelve 90-minute sessions. The participants answered to Child-Parent Relationship Scale (CPRS) in three stages: pre-test, post-test and follow-up. The data were analyzed by repeated measures ANOVA.

Findings: The Kazdin method for parenting training significantly increased the parent-child relationships in the subscales of proximity, the general positive relationship, the reduction of conflict, and dependence in children with ODD (p<0.001).

Conclusions: The Kazdin method for parenting training has increased the parent-child relationships in children with ODD. According to the results of this study, the Kazdin method for parenting can be an effective way to improve parent-child relationships among students with ODD.