Objective:Depression scales that are responsive to changes in clinical symptoms are important for clinical monitoring and outcomes assessment in longitudinal studies. Stellato, Christina Perez Cornell, John Barrett, James E. The 13- and 20-Item Hopkins Symptom Checklist Depression Scale: Psychometric Properties in Primary Care Patients with Minor Depression or Dysthymia The 13- and 20-Item Hopkins Symptom Checklist Depression Scale: Psychometric Properties in.