This scale was developed to better capture symptoms of ADHD in adult patients. It uses a semi-structured interview methodology with suggested prompts for each item to improve inter-rater reliability. The scale's 18 items directly correspond to the 18 DSM-IV symptoms of ADHD where 9 inattentive items alternate with 9 hyperactive-impulsive items. Items include questions such as "Do you make careless mistakes when working on a boring or difficult project?", "Do you fidget or squirm with your hands or feet when you have to sit down for a long time?", and "Do you have difficulty waiting your turn in situations when turn taking is required?" Each item includes a series of additional questions that the interviewer can use to further prompt the participant (for example, for the item on waiting your turn, prompts include, "Are you frequently frustrated with delays? Do you put a great deal of effort into planning to not be in situations where you might have to wait").
Impulsivity and General Trait & Behavior Scales