The Questionnaire for Measuring Factors of Aggression (Fragebogen zur Erfassung von Aggressivitätsfaktoren, FAF) was completed by 113 depressive patients, 38 psoriatics, and 32 healthy controls. The controls had the lowest aggression scores, the neurotic depressives the highest. The monopolar endogeneous depressives had extremely high scores for autoaggressions and extremely low ones for outward aggressions, whereas the psoriatics show a contrary tendency: extremely high scores for outward aggressions and very low ones for autoaggressions.