The Hopkins Symptom Checklist (HSCL)--factors derived from the HSCL-90.

A factor analysis of the 90-item version of the Hopkins Symptom Checklist, performed on the pretreatment self-ratings of nonpsychotic outpatients with symptoms of depression and anxiety, revealed the presence of 8 clinically meaningful factors. These eight orthogonal factors each contained at least 5 items with loadings above 0.40 and explained 4.5% or more of the matrix variance. They were labeled Somatization, Phobic-Anxiety, Retarded Depression, Agitated Depression, Obsessive-Compulsive, Interpersonal Sensitivity, Anger-Hostility and Psychoticism.