Abstract
The relationship between personality (as measured by the 16 Personality Factor Questionnaire) and depressive illness type, as determined by responses to the Levine-Pilowsky Depression Questionnaire, was studied in human subjects. When the effects of age and depressive severity were accounted for, a significant difference emerged between endogenous and non-endogenous depressive states in that the former were associated with a lower score on factor E, indicating a more submissive, dependent personality. Implications of this finding are discussed.