This study shows the familial risk factors for childhood disruptive disorders; it was performed by Marina Bornovalove with the University of South Florida; Ryan Blazei, Stephen Malone, Matt Mcgue and William Iacono with the University of Minnesota (Bornovalova, Blazei, Malone, McGue & Iacono, 2013). In this study, it examined the association of how parents handled themselves, family drama, divorce or separation, and child disruptive behaviors. The relationship between child and parent was followed closely asking the questions: "Was the parent a strict disciplinarian who used corporal punishment?" and "How does the family handle conflict in correlation with children suffering with Attention Deficit Hyperactivity Disorder (ADHD), Conduct Disorder and Oppositional Defiant Disorder?" (Bornovalova, Blazei, Malone, McGue & Iacono, 2013).
The participants in this study was consisted of 1255 families that was made up of 1230 males and 1280 female children and their biological parents. Of these 1255 families, 98% of the mothers and 94.4% of the fathers joined in the process. Widowed or single/never married parents were not include in this study (Bornovalova, Blazei, Malone, McGue & Iacono, 2013). This study was performed in one evaluation lasting one day. A questionnaire with 50 questions was given to each parent and the data pulled from this questionnaire made up the results of the study. Some of the questions were about the participant's happiness in the marriage and what changes they would make, if they could. These questions helped estimate the denouement antisociality and disruptive familial drama had on the corresponding children with Disruptive Behavior Disorder symptoms. These included conflict assessments between parent and child; it also looks into the parent's understanding of their ability to contribute to the symptoms; and whether divorce or separation contributed greatly or slightly to these childhood disruptive behavior disorders.