Abstract
A longitudinal study was conducted to test two hypotheses, congruency and hopelessness-mediation, in hopelessness theory of depression. Three cognitive diatheses (attributional style, and inferential styles for consequences as well as the self), symptoms of depression, and hopelessness were measured in a survey of 279 men and women. About three months later, symptoms and hopelessness were measured again, along with negative life events in the interim. Some support was obtained for congruency hypothesis. Women with depressogenic attributional style in interpersonal domain became depressed when they experienced negative events in the domain, while men with depressogenic attributional style in achievement domain similarly became depressed. However, no comparable effect was found for the other diatheses: inferential styles. Hopelessness-mediation hypothesis was partly supported in interpersonal domain.
