Increasing evidence indicates that normal and abnormal personality can be treated within a single structural framework. However, identification of a single integrated structure of normal and abnormal personality has remained elusive. Here, a constructive replication approach was used to delineate an integrative hierarchical account of the structure of normal and abnormal personality. This hierarchical structure, which integrates many Big Trait models proposed in the literature, replicated across a metaanalysis as well as an empirical study, and across samples of participants as well as measures. The proposed structure resembles previously suggested accounts of personality hierarchy and provides insight into the nature of personality hierarchy more generally. Potential directions for future research on personality and psychopathology are discussed.In recent years, there has been increasing consensus that normal and abnormal personality variation can be treated within a single, unified structural framework (Eysenck, 1994;O'Connor, 2002;. A variety of studies have indicated, for example, that personality structure is essentially the same in clinical and nonclinical samples (O'Connor, 2002), that normal and abnormal personality are strongly related at the etiologic level (Jang & Livesley, 1999;Markon, Krueger, Bouchard, & Gottesman, 2002), and that abnormal personality can be modeled as extremes of normal personality variation (O'Connor & Dyce, 2001).Despite consensus about the possibility of describing normal and abnormal personality within a single structural framework, however, there is less consensus about what this structural framework might be. Although there is emerging consensus about the superordinate structure of normal personality (Goldberg, 1993), less consensus exists about a similar structure of abnormal personality (Livesley, 2001). Delineating a unified superordinate structure across normal and abnormal domains of personality has been even more challenging. Empirical results have supported a variety of conclusions, and validity has been demonstrated for multiple structural models (e.g., Jang & Livesley, 1999;Markon et al., 2002;O'Connor, 2002).Here, we argue that abnormal and normal personality variation is best described within a single integrative hierarchy. We demonstrate that this hierarchical structure replicates across a metaanalytic dataset and empirical sample, replicates across different sets of measures, and is consistent with previous integrative analyses of superordinate personality structure.Correspondence concerning this article should be addressed to Kristian E. Markon
Structural Models of Abnormal PersonalityMany models of personality structure, including those of Eysenck (1947;Eysenck & Eysenck, 1976) and Cloninger (1987;Cloninger, Svrakic, & Przybeck, 1993), were formulated with an explicit goal of describing both normal and abnormal trait variation. Other prominent models, such as the Big Five, were developed without explicit attention to any distinction between normal and...