Personality traits have been hypothesized to be clinically useful for diagnosis, client
conceptualization, treatment planning, as well as for predicting treatment outcomes …

Abstract The Big Five is often represented as an effective taxonomy of psychological traits,
yet little research has empirically examined whether stand-alone assessments of …

Objective Despite decades of work on narcissism, there remain many active areas of
exploration and debate including a clear and consensual description of its underlying …

The six–dimensional HEXACO model of personality structure and its associated inventory
have increasingly been used in personality research. But in spite of the evidence supporting …

Motivation has long been recognized as an important component of how people both differ
from, and are similar to, each other. The current research applies the biologically grounded …

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5)
includes an alternative model of personality disorders (PDs) in Section III, consisting in part …

A robust literature has emerged on the Dark Triad (DT) of personality—Machiavellianism
(MACH), psychopathy, and narcissism. Questions remain as to whether MACH and …

Objective Increasing attention has been paid to the distinction between the dimensions of
narcissistic grandiosity and vulnerability. We examine the degree to which basic traits …

Machiavellianism is characterized by planfulness, the ability to delay gratification, and
interpersonal antagonism (ie, manipulativeness and callousness). Although its theoretically …

As research on the dark triad (DT; the interrelated constructs of Machiavellianism,
narcissism, and psychopathy) has accumulated, a subset of this research has focused on …