Introduction: Although fear of darkness is most common in childhood, it is also a remarkable phenomenon in young adulthood. Aim: To examine the relationship between fear of darkness, early maladaptive schemas and attachment quality in young adults and assess fear related sex differences. Method: A self-developed scale was used to measure fear of darkness’ intensity and frequency. Young Schema Questionnaire – Short Form and two scales that measure attachment dimensions were also applied. 120 university students (68 women, 52 men) filled in the tests. Results: Fear of darkness’ frequency correlated with avoidant attachment, and intensity with independent and anxious attachment. Fear of darkness variables correlated with several early maladaptive schemas. Women reported more frequent and intensive fear of darkness than men. Conclusions: These results indicated that the elevated level of fear of darkness is related to specific cognitive style and attachment quality. This highlights the potential clinical relevance of fear of darkness. Orv. Hetil., 2014, 155(49), 1967–1972.
