The ASRS is an instrument consisting of the eighteen DSM-IV-TR criteria for Adult ADHD. It is most often used for screening purposes but can be used to monitor the degree of symptoms.
Created by Drs. Lenard Adler, Ronald C. Kessler, and Thomas Spencer, in conjunction with the World Health Organization and the Workgroup on Adult ADHD. The scale has been published by the authors and widely distributed. Copyright 2003 World Health Organization. Can be duplicated as long as the content is not altered.
More: harvard.edu
Self-report scales are for screening purposes only, and must be interpreted by a qualified health professional in conjunction with clinical assessment. They cannot be used alone for diagnostic or treatment purposes.