The Adult ADHD Self-Report Scale (ASRS v1.1) and scoring system were developed in conjunction with the World Health Organization (WHO) and the Workgroup on Adult ADHD to help healthcare professionals to screen their patients for adult ADHD. Insights gained through this screening may suggest the need for a more in-depth clinician interview. The questions in the ASRS v1.1 are consistent with DSM-IV criteria and address the manifestations of ADHD symptoms in adults. The content of the questionnaire also reflects the importance that DSM-IV places on symptoms, impairments, and history for a correct diagnosis.