The University of Washington maintains an extensive list of resources for pediatric behavioral health screening and surveillance. Topics include anxiety, ADHD, autism, depression, and sleep disorders in children.
This is a self-rating scale for patients to fill out to assist your diagnosis of Adult ADHD. As a healthcare professional, you can use the ASRS v1.1 as a tool to help screen for ADHD in adult patients.
The Wender Utah Rating Scale can be used to assess adults for Attention Deficit Hyperactivity Disorder with a subset of 25 questions associated with that diagnosis. It is a retrospective diagnosis of childhood ADHD.
The Montreal Cognitive Assessment (MOCA) is available in several different languages to screen for mild cognitive impairment and dementia.