2.4.1. ADHD Rating Scale (ADHD-RS)
attention deficit symptoms, hyperactivity, hyperactive-impulsive symptoms, ADHD, attention deficit
The ADHD-RS is the corresponding 18-item ADHD symptom scale in the DSM-IV, of which nine are attention deficit symptoms, and nine are hyperactive-impulsive symptoms. The internal consistency is high, with Cronbach's alpha around 0.92 for the total score. Test-retest reliability over 4 weeks is 0.85. It also shows good convergent and divergent validity when correlated with other ADHD assessments. The frequency of symptoms was evaluated on a 4-point scale from 0 (none) to 3 (always), and the total scale score, attention deficit score, and hyperactivity subscale score were used as indicators of efficacy [