disruptive behavior disorders rating scale disruptive behavior disorders rating scale the disruptive behavior disorders rating scale (dbdrs) is a 45-question screening measure, completed by either parents or teachers, designed to identify symptoms of attention deficit hyperactivity disorder, oppositional defiant disorder, and conduct disorder in children and adolescents. disruptive behavior disorders rating scalepurposeidentify adhd part of a series onpsychology outline history subfields basic types abnormal behavioral behavioral genetics biological cognitive/cognitivism comparative cross-cultural cultural developmental differential evolutionary experimental mathematical neuropsychology personality positive psychodynamic psychometrics quantitative social applied psychology applied behavior analysis clinical community consumer counseling critical educational environmental ergonomics food forensic health humanistic industrial and organizational legal medical military music occupational health political psychometrics religion school sport traffic lists disciplines organizations psychologists psychotherapies research methods theories timeline topics psychology portal this questionnaire was developed by pelham and colleagues in 1992 and inspired the questionnaire developed in parallel, the snap-iv (swanson, nolan and pelham teacher and parent rating scale). it is available online. for each question, the respondent is asked to indicate the degree to which a statement describes the child's behavior. response options include “not at all", "just a little", "pretty much", and "very much". for any question they do not know the answer to, respondents are asked to write "dk" for "don't know". the behavioral rating scale takes 5–10 minutes to complete and is designed for use with children ages 5 and up. the scores of the scale have been shown to be reliable and valid across multiple different study samples.