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Nightmare Proneness and Neuroticism: Related but Empirically Distinguishable Predictors of Nightmares

William E. Kelly

Individual Differences Research May 22, 2026 DOI: 10.65030/idr.24005 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Peer reviewed
Sample size 774
Population University students
Topics Dreaming
Key findings Nightmare proneness and neuroticism are distinguishable but correlated factors. Nightmare proneness was more strongly associated with nightmares and predicted incremental variance beyond neuroticism.

Abstract

Nightmare proneness and neuroticism are strongly related constructs which differentially predict variance in nightmares, yet their empirical distinctiveness remains unclear. The current study examined relationships among nightmare proneness, neuroticism, and nightmares in 774 university students. Principal axis exploratory factor analysis indicated that nightmare proneness and neuroticism items formed distinguishable but correlated factors. Neuroticism items loaded strongly on one factor, whereas nightmare proneness items loaded on a separate factor. The heterotrait-monotrait ratio supported adequate construct differentiation despite a substantial zero-order correlation. Nightmare proneness and neuroticism were both associated with nightmares, although consistent with previous research, nightmare proneness demonstrated stronger relationships and predicted incremental variance in nightmares beyond neuroticism. Overall, the results suggest that nightmare proneness is intertwined with neuroticism yet includes separable elements potentially relevant to nightmare production mechanisms.