The HEXACO Personality Space Before and After Re-Rotation to Approximate the Big Five Dimensions.

We re-oriented the HEXACO personality dimensions to approximate the Big Five, using two measures of the Big Five as targets in a derivation sample and then in cross-validation samples. The HEXACO approximations of Big Five Agreeableness represented blends of HEXACO Agreeableness, Emotionality, and Honesty-Humility. The HEXACO approximations of Big Five Neuroticism represented blends of Emotionality with low Agreeableness and low Extraversion. The residual sixth dimension, unrelated to the Big Five, contrasted Honesty-Humility with HEXACO Agreeableness. We then examined, in additional samples, some correlates of the original and re-rotated HEXACO dimensions. In the original HEXACO factor space, Honesty-Humility was the strongest correlate of unethical behaviors (selfishness and cheating), participant age, and "assumed similarity" to a friend or partner. Upon re-rotation of the HEXACO factors, associations involving these variables were divided between Big Five Agreeableness and the residual sixth dimension. Sex differences were mainly associated with Emotionality but after re-rotation of the HEXACO factors were divided between Big Five Agreeableness and Neuroticism. We discuss the relative merits of the original and Big Five-targeted HEXACO dimensions with reference to the practical utility of Big Five Agreeableness and Neuroticism and the simplicity and theoretical interpretability of the original HEXACO factors.

The alternative model of personality disorder is inadequate for capturing obsessive-compulsive personality disorder.

The alternative model of personality disorder (AMPD) included in Section III of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) reconceptualized personality pathology in terms of pathological traits and impairments in functioning. For example, the construct of obsessive-compulsive personality disorder (OCPD) was reconceptualized via the traits of rigid perfectionism as well as at least 2 of perseveration, intimacy avoidance, and restricted affectivity. We review the literature to summarize how effectively the legacy construct of OCPD is captured by the AMPD. We conclude that although the trait of rigid perfectionism is highly related to scores on OCPD measures, the AMPD as a whole fails to adequately account for the broader features of the legacy OCPD construct. Specifically, the AMPD trait model lacks a number of traits, such as workaholism, excessive deliberation, and moral scrupulousness, which are necessary for a fulsome dimensional trait system. These limitations in the inclusion of important traits stem from the AMPD's development process that left out crucial content. We outline how the AMPD could be improved in its ability to account for problems of overcontrolled behavior. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Mapping a hierarchical dimensional structure of high experiential permeability: A bass-ackward approach to linking positive schizotypy and openness to experience.

Research on dimensional models of personality pathology has achieved a good deal of consensus on the 5 broad constructs that span adaptive and maladaptive personality traits. Nonetheless, connections between the 5th domain, typically called openness to experience within general personality measures and psychoticism or schizotypy on maladaptive measures, have proven more challenging to integrate. Using experiential permeability as a guiding framework, the current study seeks to develop a hierarchical, empirically derived lower order structure with these concepts. Using a top-down "Bass-Ackward" approach, we examined the item-level structure of adaptive and maladaptive components of high experiential permeability. Results showed support for a hierarchical model with a 6-component solution including mystical beliefs/experiences, oddity, intellect, openness to aesthetics, openness to ideas, and introspection. These components from items drawn from general and maladaptive measures related to one another within and across levels, specifically oddity and openness to aesthetics. Findings also highlight the importance of using lower level analyses when examining larger, heterogeneous constructs such as schizotypal thinking and perception and openness. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

A meta-analytic review of personality traits and their associations with mental health treatment outcomes.

Personality traits have been hypothesized to be clinically useful for diagnosis, client conceptualization, treatment planning, as well as for predicting treatment outcomes. Although several studies examined the relation between personality traits and specific therapy outcomes, this literature has not yet been systematically reviewed. Thus, the purpose of the current study was to investigate the relations between personality traits and various therapeutic outcomes. Traits were organized via the domains of the five-factor model to provide a common framework for interpreting effects. Across 99 studies (N = 107, 206), overall findings indicated that traits were systematically related to outcomes, with many specific relations congruent with theorized predictions. Generally, lower levels of neuroticism and higher levels of extraversion, agreeableness, conscientiousness, and openness were associated with more favorable outcomes. More specifically, agreeableness had positive associations with therapeutic alliance and conscientiousness was positively related to abstinence from substances suggesting these traits are likely a beneficial factor to consider at the outset of services. Personality traits also related to various outcomes differently based on moderators. For example, duration of treatment moderated links between traits and outcomes suggesting these effects are amplified over longer services. Overall results suggest that personality assessment can aid with case conceptualization by suggesting potential strengths as well as barriers to treatment.

Development of a Short Form of the Abridged Big Five-Dimensional Circumplex Model to Aid with the Organization of Personality Traits.

Although there has been widespread consensus on the use of the Five-Factor Model (FFM) of general personality functioning in personality research, there are various, diverse models of the lower order traits of the FFM domains. Given the usefulness of these finer grained traits, it is imperative to integrate facets proposed across a variety of models and eventually reach consensus on the lower level traits of the FFM. Due to its depth and coverage, the Abridged Big Five-Dimensional Circumplex (AB5C) model potentially provides a useful framework for organizing various faceted models due to its conceptual organization and inclusiveness. The only measure of this model-the IPIP-AB5C-has shown promise, but is limited by its length (i.e., 485 items). This study developed an abbreviated version of the IPIP-AB5C using an iterative process including item response theory methods. The shorter version maintained key features of the long form including a factor structure that matched the full form as well as facets that correlated in expected ways with other FFM measures. Building on this support, the short form was used to contextualize and organize the facets from 2 commonly used measures.

The agreement between clients' and their therapists' ratings of personality disorder traits.

OBJECTIVE: Treating clinicians provide the majority of mental health diagnoses, yet little is known about the validity of their routine diagnoses, including the agreement with clients' self-reports. This is particularly notable for personality disorders (PDs) as the literature suggests weak agreement between therapists and clients. Existing research has been limited by a focus on PD categories and brief therapist-report measures. Furthermore, although self-reports of PD have been criticized for underreporting, very few data have compared them with therapist report in terms of mean level. METHOD: We addressed these limitations by collecting dimensional trait ratings from 54 therapist-client dyads within outpatient clinics. The clients (52% women, 94% Caucasian, 39.8 years) provided ratings of dimensional PD traits via the Personality Inventory for DSM-5 (PID-5) while therapists (72% female, 89% Caucasian) completed the Informant version of the same measure. RESULTS: Employing systematic measures of traits yielded higher rank-order agreement than observed in prior studies, with a median correlation of .41 across the PID-5 domains. Most interestingly, mean-level comparisons indicated that clients reported significantly higher levels of PD pathology than did their therapists. This effect was most notable for the domain of Psychoticism, which had the lowest rank-order agreement (r = .16) and the largest mean-level discrepancies. CONCLUSIONS: When clinicians utilized systematic measures of dimensional traits their agreement with client was higher than reported in past studies. Furthermore, clients reported significantly more PD pathology than was noted by their therapists suggesting concerns about invalid self-reports due to underreporting have been overstated. (PsycINFO Database Record

A Preliminary Probe of Personality Predicting Psychotherapy Outcomes: Perspectives from Therapists and Their Clients.

BACKGROUND: It is widely established that personality disorder has as broad negative impact on psychotherapy outcomes. Given the increased emphasis on dimensional traits for personality pathology in the DSM-5 and the proposal for the ICD-11, it is important to understand how traits are linked to treatment outcomes. Building on past research with general traits, we hypothesized that more nuanced and specific relations would be apparent. Furthermore, much of the past research has relied upon self-reports of personality and little is known about how ratings from therapists might be related to outcomes. SAMPLING AND METHODS: The present paper examined how dimensional traits from the Five-Factor Model predicted outcomes in a case series of 54 therapist-client dyads within a doctoral training clinic. Importantly, this extends past research as dimensional traits were rated by both therapists and clients at intake as well as sequentially over the course of therapy. RESULTS: Correlations and regression analyses indicated that traits predicted a variety of outcomes including initial engagement in treatment as well as overall symptom reduction across therapy. Specifically, preliminary evidence suggests that therapist-rated conscientiousness at intake was positively related to clients' early engagement in therapy. In addition, openness to experience after the 4th session - particularly as rated by the client - was predictive of long-term therapy outcomes. CONCLUSIONS: Broadly, these results provided preliminary information about the promise of dimensional models for improving the clinical utility of personality disorder diagnoses. More specifically, these results reinforced the relevance of personality assessment during therapy and indicated the potential predictive value of ratings by therapists and their clients.

Assessing the assessors: The feasibility and validity of clinicians as a source for personality disorder research.

The use of knowledgeable informants is a particularly valuable tool for the diagnosis and assessment of personality disorder (PD). This review details the use of one particular type of informant-practicing clinicians-in PD research. We detail a wide variety of studies that have employed clinicians as an assessment source, including those focused on interrater agreement, comparative validity with other methods, cognitive factors of diagnosis, and opinion surveys. We demonstrate limitations, such as potential biases and limited convergent validity, which caution against the assumption that clinicians' ratings should be considered a gold-standard. Nonetheless, we also highlight the potential value of research that focuses on clinicians due to its external validity to real-world practice settings. Finally, we outline several issues to consider when sampling clinicians, such as participation rate and sample size, and call for future research that collects ratings from clinicians using systematic, well-validated measures. (PsycINFO Database Record