The Conners 3- Parent Rating Scale Short Form is used to assess symptoms related to ADHD. Parents/ carers rate the frequency over the past month of 45 descriptions of problem behaviours. Scores on these items form six subscales consisting of Inattention, Hyperactivity/ Impulsivity, Learning Problems, Executive Function, Aggression, and Peer Relations. The sum of raw scores on each subscale is converted to a T-score (M = 50, SD = 10). Please note that the scoring instructions and the wording of each item are subject to copyright and are therefore not available in the data release.