Two studies were performed to examine a factor-analytic and an individualized approach to creating short progress-monitoring measures from the longer "ADHD-Symptom Checklist-4" (ADHD-SC4). In Study 1, teacher ratings on items of the ADHD:Inattentive (IA) and ADHD:Hyperactive-Impulsive (HI) scales of the ADHD-SC4 were factor analyzed in a normative data sample of 493 students aged 5 to 12 years. Items with the highest factor loadings were then selected to create abbreviated IA and HI scales for Study 2. In Study 2, the psychometric characteristics of two shortened progress-monitoring measures (factor derived and individualized) and the original IA and HI scales of the ADHD-SC4 were examined in a sample of 26 students aged 4 to 17 years in a medication titration study involving baseline and three doses of methylphenidate. The results indicated comparable psychometric properties across the original and abbreviated versions of the IA and HI scales. (Contains 4 tables.)