Objectives: To determine the distribution of scores, reliability, validity and association with sociodemographic variables of the Self-Report Scale of Attention Deficit Hyperactivity Disorder in adults - Screening (ASRS- Screening) in the population of Lima and Callao, according to two rating scales (binary and Likert), and to establish the concordance between both of them. Material and Methods: Study based on data from the Epidemiological Mental Health Study of Metropolitan Lima 2012 - Replication, in a sample of 4 445 people, 18 years or older (42.6 ± 17.4). Results: The average of the ASRS-Likert screening was 3.74 + 3.9 (range 0-21), internal consistency using Cronbach alpha coefficient = 0.806, McDonald’s omega coefficient = 0,869, and factor analysis showed 52.95% of the total inertia explained by a single factor. In binary scale. mean = 0.89 + 1.27 (range 0-6), Cronbach alpha =...