Adult ADHD Self-Report Scale
The ASRS was developed in conjunction with the World Health Organization (WHO), and the Workgroup on Adult ADHD which included researchers from New York University Medical School and Harvard Medical School. The ASRS has eighteen questions, which are consistent with the DSM-IV criteria and address ADHD symptoms in adults. The six question ASRS Screener was later developed as a subset of the WHO's eighteen question ASRS. At least one study has found that the six question ASRS Screener outperformed the eighteen question ASRS in diagnosing ADHD in the general population.
ASRS has been adapted to other languages including Spanish and Chinese. Conducted research proved that the scale is a valid and useful tool for the screening of adult ADHD. The ASRS was externally validated on approximately 60 adult patients, and showed high internal consistency and high concurrent validity with the physician-administered ADHD rating system. 
Each question can be answered on a five item Likert scale, based on a scale of frequency ranging from "Never" to "Very Often". Answers are scored as either positive or negative and the threshold is different for individual questions. Answers of "Never" and "Rarely" are always scored negative, answers of "Often and Very Often" are always scored positive, and answers of "Sometimes" are scored positively in only seven of the eighteen questions. Four or more positive answers in Part A is indicative of ADHD symptoms.
- Online version of the ASRS v1.1
- "Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist" (PDF). Archived from the original (PDF) on 19 October 2013. (Suitable for printing.)
- Online version of the ASRS v1.1 (Arabic & English)
- American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision. Washington, DC, American Psychiatric Association. 2000: 85-93
- Kessler, RC; Adler, L; Ames, M et al. (Feb 2005). "The World Health Organization Adult ADHD Self-Report Scale (ASRS): a short screening scale for use in the general population". Psychol Med. 35 (2): 245–56. PMID 15841682.
- Yeh, CB; Gau, SS; Kessler Rc, Wu YY (2008). "Psychometric properties of the Chinese version of the adult ADHD Self-report Scale". Int J Methods Psychiatr Res. 17 (1): 45–54. PMID 18286465. doi:10.1002/mpr.241.
- "[Validation of the Spanish version of the attention deficit hyperactivity disorder adult screening scale (ASRS v. 1.1): a novel scoring strategy]". Rev Neurol 48 (9): 449–52. 2009. PMID 19396760.
- Adler LA, Spencer T, Faraone SV, Kessler RC, Howes MJ, Biederman J, Secnik K. (2006). "Validity of pilot Adult ADHD Self- Report Scale (ASRS) to Rate Adult ADHD symptoms.". Ann Clin Psychiatry. 18 (3): 145–8. PMID 16923651. doi:10.1080/10401230600801077.