Adult ADHD Self-Report Scale (ASRS-v1.1)

The ASRS-v1.1 is an 18-item self-report screening scale for attention-deficit/hyperactivity disorder in adults, developed by Kessler and colleagues in 2005 under World Health Organization auspices. A brief 6-item version provides rapid initial screening. The scale has become standard first-step screening in primary care, occupational medicine, and mental health settings, particularly valuable for identifying undiagnosed ADHD in working-age adults.