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date: 27 January 2020

Abstract and Keywords

This chapter discusses new theoretical and research developments related to the Schedule for Adaptive and Nonadaptive Personality-2 (SNAP-2; Clark, Simms, Wu, & Casillas, in press) in the context of the forthcoming Diagnostic and Statistical Manual of Mental Disorders (DSM-5), particularly regarding personality disorder (PD). The theoretical underpinnings of dimensional taxonomies of personality traits and PD, and between personality and psychosocial functioning, are considered first. Next, recent SNAP-2 research is reviewed, most notably in the areas of dependency, impulsivity, and schizotypy. In aggregate, the findings suggest that existing SNAP-2 scales cover significant variance in these content domains, but that a SNAP-3 would benefit by increased coverage of each, specifically active/emotional dependency, carefree/-less behavior, and schizotypal disorganization. Information about additional SNAP versions for informant ratings and adolescent personality/PD, respectively, is provided. Finally, the utility of a program of research elucidating relations between personality and functioning is presented.

Keywords: SNAP, SNAP-2, DSM-5, personality traits, personality disorder, psychosocial functioning, dependency, impulsivity, schizotypy, informant ratings, adolescent personality

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