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Full-Text Articles in Behavior and Behavior Mechanisms

Can Personality Disorder Experts Recognize Dsm-Iv Personality Disorders From Five-Factor Model Descriptions Of Patient Cases?, Benjamin M. Rottman, Nancy S. Kim, Woo-Kyoung Ahn, Charles A. Sanislow Apr 2011

Can Personality Disorder Experts Recognize Dsm-Iv Personality Disorders From Five-Factor Model Descriptions Of Patient Cases?, Benjamin M. Rottman, Nancy S. Kim, Woo-Kyoung Ahn, Charles A. Sanislow

Charles A. Sanislow, Ph.D.

Background: Dimensional models of personality are under consideration for integration into the next Diagnostic and Statistical Manual of Mental Disorders (DSM-5), but the clinical utility of such models is unclear.

Objective: To test the ability of clinical researchers who specialize in personality disorders to diagnose personality disorders using dimensional assessments and to compare those researchers’ ratings of clinical utility for a dimensional system versus for the DSM-IV.

Method: A sample of 73 researchers who had each published at least 3 (median = 15) articles on personal- ity disorders participated between December 2008 and January 2009. The Five-Factor Model (FFM), one …


Personality Assessment In Dsm--5: Empirical Support For Rating Severity, Style, And Traits, Christopher J. Hopwood, Johanna C. Malone, Emily B. Ansell, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan, Anthony Pinto, John C. Markowitz, M. Tracie Shea, Andrew E. Skodol, John G. Gunderson, Mary C. Zanarini, Leslie C. Morey Dec 2010

Personality Assessment In Dsm--5: Empirical Support For Rating Severity, Style, And Traits, Christopher J. Hopwood, Johanna C. Malone, Emily B. Ansell, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan, Anthony Pinto, John C. Markowitz, M. Tracie Shea, Andrew E. Skodol, John G. Gunderson, Mary C. Zanarini, Leslie C. Morey

Charles A. Sanislow, Ph.D.

Despite a general consensus that dimensional models are superior to the categorical representations of personality disorders in DSM-IV, proposals for how to depict personality pathology dimensions vary substantially. One important question involves how to separate clinical severity from the style of expression through which personality pathology manifests. This study empirically distinguished stylistic elements of personality pathology symptoms from the overall severity of personality disorder in a large, longitudinally assessed clinical sample (N = 605). Data suggest that generalized severity is the most important single predictor of current and prospective dysfunction, but that stylistic elements also indicate specific areas of difficulty. …


Psychometric Characteristics And Clinical Correlates Of Neo-Pi-R Fearless Dominance And Impulsive Antisociality In The Collaborative Longitudinal Personality Disorders Study, Edward A. Witt, Christopher J. Hopwood, Leslie C. Morey, John C. Markowitz, Thomas H. Mcglashan, Carlos M. Grilo, Charles A. Sanislow, M. Tracie Shea, Andrew E. Skodol, John G. Gunderson, M. Brent Donnellan Aug 2010

Psychometric Characteristics And Clinical Correlates Of Neo-Pi-R Fearless Dominance And Impulsive Antisociality In The Collaborative Longitudinal Personality Disorders Study, Edward A. Witt, Christopher J. Hopwood, Leslie C. Morey, John C. Markowitz, Thomas H. Mcglashan, Carlos M. Grilo, Charles A. Sanislow, M. Tracie Shea, Andrew E. Skodol, John G. Gunderson, M. Brent Donnellan

Charles A. Sanislow, Ph.D.

This study evaluates the validity of derived measures of the psychopathic personality traits of Fearless Dominance and Impulsive Antisociality from the NEO Personality Inventory-Revised (NEO-PI-R; Costa & McCrae, 1992) using data from the Collaborative Longitudinal Personality Disorders Study (baseline N = 733). These 3 issues were examined: (a) the stability of the measures over a 10-year interval, (b) their criterion-related validity, and (c) their incremental validity relative to an alternative NEO-PI-R profile-rating approach for assessing psychopathy. NEO-PI-R Fearless Dominance and Impulsive Antisociality scales were relatively stable across 10 years and demonstrated differential associations with measures of personality pathology and psychopathology …


The Stability Of Personality Traits In Individuals With Borderline Personality Disorder, Christopher J. Hopwood, Daniel A. Newman, M. Brent Donnellan, John C. Markowitz, Carlos M. Grilo, Charles A. Sanislow, Emily B. Ansell, M. Tracie Shea, Andrew E. Skodol, Thomas H. Mcglashan, John G. Gunderson, Mary C. Zanarini, Leslie C. Morey Oct 2009

The Stability Of Personality Traits In Individuals With Borderline Personality Disorder, Christopher J. Hopwood, Daniel A. Newman, M. Brent Donnellan, John C. Markowitz, Carlos M. Grilo, Charles A. Sanislow, Emily B. Ansell, M. Tracie Shea, Andrew E. Skodol, Thomas H. Mcglashan, John G. Gunderson, Mary C. Zanarini, Leslie C. Morey

Charles A. Sanislow, Ph.D.

Although stability and pervasive inflexibility are general criteria for Diagnostic and Statistical Manual of Mental Disorders, 4th edition (American Psychiatric Association, 1994) personality disorders (PDs), borderline PD (BPD) is characterized by instability in several domains, including interpersonal behavior, affect, and identity. The authors hypothesized that such inconsistencies notable in BPD may relate to instability at the level of the basic personality traits that are associated with this disorder. Five types of personality trait stability across 4 assessments over 6 years were compared for BPD patients (N = 130 at first interval) and patients with other PDs (N = 302). Structural …


The Convergent And Discriminant Validity Of Five-Factor Traits: Current And Prospective Social, Work, And Recreational Dysfunction, Christopher J. Hopwood, Leslie C. Morey, Emily B. Ansell, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan, John C. Markowitz, John G. Gunderson, Shirley Yen, M. Tracie Shea, Andrew E. Skodol Sep 2009

The Convergent And Discriminant Validity Of Five-Factor Traits: Current And Prospective Social, Work, And Recreational Dysfunction, Christopher J. Hopwood, Leslie C. Morey, Emily B. Ansell, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan, John C. Markowitz, John G. Gunderson, Shirley Yen, M. Tracie Shea, Andrew E. Skodol

Charles A. Sanislow, Ph.D.

The convergent and discriminant validity of Five Factor Model (FFM) personality traits with concurrent and prospective social, work, and recreational dysfunction was assessed in a large, longitudinal clinical sample. Consistent with five factor theoretical expectations, neuroticism is broadly related to dysfunction across domains; extraversion is primarily related to social and recreational dysfunction; openness to recreational dysfunction; agreeableness to social dysfunction; and conscientiousness to work dysfunction. Findings support five factor theory and the clinical assessment of normative personality traits.


Self-Criticism Versus Neuroticism In Predicting Depression And Psychosocial Impairment For 4 Years In A Clinical Sample, David M. Dunkley, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan Jun 2009

Self-Criticism Versus Neuroticism In Predicting Depression And Psychosocial Impairment For 4 Years In A Clinical Sample, David M. Dunkley, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

The present study extended previous findings demonstrating self-criticism, assessed by the Dysfunctional Attitude Scale (DAS) (Weissman AN, Beck AT. Development and validation of the Dysfunctional Attitude Scale: a preliminary investigation. Paper presented at the 86th Annual Convention of the American Psychological Association, Toronto, Ontario, Canada, 1978), as a potentially important prospective predictor of depressive symptoms and psychosocial functional impairment over time. Using data from a prospective, 4-year study of a clinical sample, DAS self-criticism and neuroticism were associated with self-report depressive symptoms, interviewer-rated major depression, and global domains of psychosocial functional impairment 4 years later. Hierarchical multiple regression results indicated …


The Construct Validity Of Rule-Breaking And Aggression In An Adult Clinical Sample, Christopher J. Hopwood, S. Alexandra Burt, John C. Markowitz, Shirley Yen, M. Tracie Shea, Charles A. Sanislow, Carlos M. Grilo, Emily B. Ansell, Thomas H. Mcglashan, John G. Gunderson, Mary C. Zanarini, Andrew E. Skodol, Leslie C. Morey Apr 2009

The Construct Validity Of Rule-Breaking And Aggression In An Adult Clinical Sample, Christopher J. Hopwood, S. Alexandra Burt, John C. Markowitz, Shirley Yen, M. Tracie Shea, Charles A. Sanislow, Carlos M. Grilo, Emily B. Ansell, Thomas H. Mcglashan, John G. Gunderson, Mary C. Zanarini, Andrew E. Skodol, Leslie C. Morey

Charles A. Sanislow, Ph.D.

Previous research has demonstrated that aggression (AGG) and non-aggressive rule-breaking (RB) represent elements of antisocial behavior with different etiological mechanisms and associations to personality and psychopathology. However, these constructs have not been investigated in an adult clinical sample. In the current study, interview and self-report derived AGG and RB were associated with personality traits and disorders as well as functioning across several domains, family history, concurrent psychopathology, and prospective behaviors. Both AGG and RB were similarly related to disagreeableness. RB was uniquely related to low conscientiousness, cluster B personality disorders, functioning, problems in childhood, suicide risk, arrests, and substance use …


Can Clinicians Recognize Dsm-Iv Personality Disorders From Five-Factor Model Descriptions Of Patient Cases?, Benjamin M. Rottman, Woo-Kyoung Ahn, Charles A. Sanislow, Nancy S. Kim Mar 2009

Can Clinicians Recognize Dsm-Iv Personality Disorders From Five-Factor Model Descriptions Of Patient Cases?, Benjamin M. Rottman, Woo-Kyoung Ahn, Charles A. Sanislow, Nancy S. Kim

Charles A. Sanislow, Ph.D.

Objective: This article examined, using theories from cognitive science, the clinical utility of the Five-Factor Model (FFM) of Personality, an assessment and classification system under consideration for integration into the forthcoming fifth edition of the Diagnostic and Statistical Manual (DSM) of Mental Disorders. Specifically, the authors sought to test whether FFM descriptors are specific enough to allow practicing clinicians to capture core features of personality disorders.

Method: In two studies, a large nationwide sample of clinical psychologists, psychiatrists, and clinical social workers (N = 187 and N = 191) were presented case profiles based on symptom formats from either the …


Improvement In Borderline Personality Disorder In Relationship To Age, M. Tracie Shea, Maria O. Edelen, Shirley Yen, John G. Gunderson, Andrew E. Skodol, Charles A. Sanislow, Carlos M. Grilo, Emily B. Ansell, Maria T. Daversa, Mary C. Zanarini, Thomas H. Mcglashan, Leslie C. Morey Jan 2009

Improvement In Borderline Personality Disorder In Relationship To Age, M. Tracie Shea, Maria O. Edelen, Shirley Yen, John G. Gunderson, Andrew E. Skodol, Charles A. Sanislow, Carlos M. Grilo, Emily B. Ansell, Maria T. Daversa, Mary C. Zanarini, Thomas H. Mcglashan, Leslie C. Morey

Charles A. Sanislow, Ph.D.

Objective: It is commonly believed that some features of borderline personality disorder (BPD) improve as individuals reach their late 30s and 40s. This study examined age-related change in borderline criteria and functional impairment, testing the hypothesis that older age would be associated with relatively more improvement than younger age.

Method: A total of 216 male and female participants with BPD were followed prospectively with yearly assessments over 6 years.

Results: Participants showed similar rates of improvement in borderline features regardless of age. A significant age by study year interaction showed functioning in older subjects to reverse direction and begin to …


The Construct Validity Of Passive-Aggressive Personality Disorder, Christopher J. Hopwood, Leslie C. Morey, John C. Markowitz, Anthony Pinto, Andrew E. Skodol, John G. Gunderson, Mary C. Zanarini, M. Tracie Shea, Shirley Yen, Thomas H. Mcglashan, Emily B. Ansell, Carlos M. Grilo, Charles A. Sanislow Dec 2008

The Construct Validity Of Passive-Aggressive Personality Disorder, Christopher J. Hopwood, Leslie C. Morey, John C. Markowitz, Anthony Pinto, Andrew E. Skodol, John G. Gunderson, Mary C. Zanarini, M. Tracie Shea, Shirley Yen, Thomas H. Mcglashan, Emily B. Ansell, Carlos M. Grilo, Charles A. Sanislow

Charles A. Sanislow, Ph.D.

Although Passive Aggressive personality disorder (PAPD) plays an important role in many theories of personality pathology, it was consigned to the appendix of the fourth edition of the DSM. The scientific basis of this decision has been questioned, but several controversies persist regarding PAPD, including its structure, content validity, overlap with other PDs, and relations to validating variables such as personality traits, childhood experiences, and clinically relevant correlates. This study examined these facets of PAPD's construct validity in a large clinical sample. Results suggest that the construct is unidimensional, internally consistent, and reasonably stable. Furthermore, PAPD appears systematically related to …


New Onsets Of Substance Use Disorders In Borderline Personality Disorder Over 7 Years Of Follow-Ups: Findings From The Collaborative Longitudinal Personality Disorders Study, Marc Walter, John G. Gunderson, Mary C. Zanarini, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan, Leslie C. Morey, Shirley Yen, Robert L. Stout, Andrew E. Skodol Dec 2008

New Onsets Of Substance Use Disorders In Borderline Personality Disorder Over 7 Years Of Follow-Ups: Findings From The Collaborative Longitudinal Personality Disorders Study, Marc Walter, John G. Gunderson, Mary C. Zanarini, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan, Leslie C. Morey, Shirley Yen, Robert L. Stout, Andrew E. Skodol

Charles A. Sanislow, Ph.D.

Aims: The purpose of this study was to examine whether patients with borderline personality disorder (BPD) have a higher rate of new onsets of substance use disorders (SUD) than do patients with other personality disorders (OPD).

Design: This study uses data from the Collaborative Longitudinal Personality Disorder Study (CLPS), a prospective naturalistic study with reliable repeated measures over 7 years of follow-up.

Setting: Multiple clinical sites in four northeastern US cities.

Participants: A total of 175 patients with BPD and 396 patients with OPD (mean age 32.5 years) were assessed at baseline and at 6, 12, 24, 36, 48, 60, …


A Comparison Of Interview And Self-Report Methods For The Assessment Of Borderline Personality Disorder Criteria, Christopher J. Hopwood, Leslie C. Morey, Maria Orlando Edelen, M. Tracie Shea, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan, Maria T. Daversa, John G. Gunderson, Mary C. Zanarini, John C. Markowitz, Andrew E. Skodol Feb 2008

A Comparison Of Interview And Self-Report Methods For The Assessment Of Borderline Personality Disorder Criteria, Christopher J. Hopwood, Leslie C. Morey, Maria Orlando Edelen, M. Tracie Shea, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan, Maria T. Daversa, John G. Gunderson, Mary C. Zanarini, John C. Markowitz, Andrew E. Skodol

Charles A. Sanislow, Ph.D.

Interview methods are widely regarded as the standard for the diagnosis of borderline personality disorder (BPD), whereas self-report methods are considered a time-efficient alternative. However, the relative validity of these methods has not been sufficiently tested. The current study used data from the Collaborative Longitudinal Personality disorder Study to compare diagnostic base rates and the relative validity of interview and self-report methods for assessing functional outcome in BPD. Although self-report yielded higher base rates of criteria endorsement, results did not support the common assumption that diagnostic interviews are more valid than self-reports, but instead indicated the combined use of these …


Comparison Of Alternative Models For Personality Disorders, Leslie C. Morey, Christopher J. Hopwood, John G. Gunderson, Andrew E. Skodol, M. Tracie Shea, Shirley Yen, Robert L. Stout, Mary C. Zanarini, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan Jun 2007

Comparison Of Alternative Models For Personality Disorders, Leslie C. Morey, Christopher J. Hopwood, John G. Gunderson, Andrew E. Skodol, M. Tracie Shea, Shirley Yen, Robert L. Stout, Mary C. Zanarini, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

BACKGROUND: The categorical classification system for personality disorder (PD) has been frequently criticized and several alternative dimensional models have been proposed.

METHOD: Antecedent, concurrent and predictive markers of construct validity were examined for three models of PDs: the Five-Factor Model (FFM), the Schedule for Nonadaptive and Adaptive Personality (SNAP) model and the DSM-IV in the Collaborative Study of Personality Disorders (CLPS) sample.

RESULTS: All models showed substantial validity across a variety of marker variables over time. Dimensional models (including dimensionalized DSM-IV) consistently outperformed the conventional categorical diagnosis in predicting external variables, such as subsequent suicidal gestures and hospitalizations. FFM facets …


Longitudinal Diagnostic Efficiency Of Dsm-Iv Criteria For Borderline Personality Disorder: A 2-Year Prospective Study, Carlos M. Grilo, Charles A. Sanislow, Andrew E. Skodol, John G. Gunderson, Robert L. Stout, Donna S. Bender, Shirley Yen, M. Tracie Shea, Leslie C. Morey, Mary C. Zanarini, Thomas H. Mcglashan May 2007

Longitudinal Diagnostic Efficiency Of Dsm-Iv Criteria For Borderline Personality Disorder: A 2-Year Prospective Study, Carlos M. Grilo, Charles A. Sanislow, Andrew E. Skodol, John G. Gunderson, Robert L. Stout, Donna S. Bender, Shirley Yen, M. Tracie Shea, Leslie C. Morey, Mary C. Zanarini, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

OBJECTIVE: To examine the longitudinal diagnostic efficiency of the DSM-IV criteria for borderline personality disorder (BPD). METHODS: At baseline, we used semistructured diagnostic interviews to determine criteria and diagnoses; blinded assessments were performed 24 months later with 550 participants. Diagnostic efficiency indices (specifically, conditional probabilities, total predictive power, and kappa) were calculated for each criterion determined at baseline, with the independent BPD diagnosis at follow-up used as the standard. RESULTS: Longitudinal diagnostic efficiencies for the BPD criteria varied, with the criteria of suicidality or self-injury and unstable relationships demonstrating the most predictive utility. CONCLUSIONS: BPD criteria differ in their predictive …


Personality Traits Predict Current And Future Functioning Comparably For Individuals With Major Depressive And Personality Disorders, Christopher J. Hopwood, Leslie C. Morey, M. Tracie Shea, Thomas H. Mcglashan, Charles A. Sanislow, Carlos M. Grilo, John G. Gunderson, Mary C. Zanarini, Andrew E. Skodol Feb 2007

Personality Traits Predict Current And Future Functioning Comparably For Individuals With Major Depressive And Personality Disorders, Christopher J. Hopwood, Leslie C. Morey, M. Tracie Shea, Thomas H. Mcglashan, Charles A. Sanislow, Carlos M. Grilo, John G. Gunderson, Mary C. Zanarini, Andrew E. Skodol

Charles A. Sanislow, Ph.D.

Axes I and II were separated in DSM-III to encourage the consideration of the influence of both personality and psychopathology on patient behavior, on the assumption that an understanding of personality would increment syndromal diagnosis in treatment decisions. However, in practice the distinction between Axis I and Axis II is less clear. The current report investigates one aspect on which Axis I and Axis II might be expected to differ, that being the the significance of normative personality traits as an influence on functional status. In this study, the contribution of normative personality traits to functioning is presented for 2 …


Longitudinal Effects Of Personality Disorders On Psychosocial Functioning Of Patients With Major Depressive Disorder, John C. Markowitz, Andrew E. Skodol, Eva Petkova, Jianfeng Cheng, Charles A. Sanislow, Carlos M. Grilo, John G. Gunderson, Thomas H. Mcglashan Jan 2007

Longitudinal Effects Of Personality Disorders On Psychosocial Functioning Of Patients With Major Depressive Disorder, John C. Markowitz, Andrew E. Skodol, Eva Petkova, Jianfeng Cheng, Charles A. Sanislow, Carlos M. Grilo, John G. Gunderson, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

OBJECTIVE: No previous research has focused on psychosocial functioning in understanding how personality disorders compound the impairment caused by major depressive disorder over time. This report describes the effects of persistent and remitting comorbid personality disorders on the depressive status and functioning of patients with major depressive disorder over the course of 2 years.

METHOD: Longitudinal data on functioning from the first 2 years of the Collaborative Longitudinal Personality Disorders Study were evaluated for 3 groups of subjects with major depressive disorder: subjects with major depressive disorder alone (N = 103), those with persistent comorbid personality disorders (N = 164), …


The Collaborative Longitudinal Personality Disorders Study (Clps): Overview And Implications, Andrew E. Skodol, John G. Gunderson, M. Tracie Shea, Thomas H. Mcglashan, Leslie C. Morey, Charles A. Sanislow, Donna S. Bender, Carlos M. Grilo, Mary C. Zanarini, Shirley Yen, Maria E. Pagano, Robert L. Stout Sep 2005

The Collaborative Longitudinal Personality Disorders Study (Clps): Overview And Implications, Andrew E. Skodol, John G. Gunderson, M. Tracie Shea, Thomas H. Mcglashan, Leslie C. Morey, Charles A. Sanislow, Donna S. Bender, Carlos M. Grilo, Mary C. Zanarini, Shirley Yen, Maria E. Pagano, Robert L. Stout

Charles A. Sanislow, Ph.D.

The Collaborative Longitudinal Personality Disorders Study (CLPS; Gunderson et al., 2000) was developed to fill gaps in our understanding of the nature, course, and impact of personality disorders (PDs). Here, we review published findings to date, discuss their implications for current conceptualizations of PDs, and raise questions that warrant future consideration. We have found that PDs are more stable than major depressive disorder, but that meaningful improvements are possible and not uncommon. We have confirmed also that PDs constitute a significant public health problem, with respect to associated functional impairment, extensive treatment utilization, negative prognostic impact on major depressive disorder, …


Validity Of Das Perfectionism And Need For Approval In Relation To The Five-Factor Model Of Personality, David M. Dunkley, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan Oct 2004

Validity Of Das Perfectionism And Need For Approval In Relation To The Five-Factor Model Of Personality, David M. Dunkley, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

This study examined the validity of the perfectionism and need for approval scales of the Dysfunctional Attitude Scale (DAS; Weissman & Beck, 1978) by locating these measures within a comprehensive framework of personality, provided by the revised NEO Personality Inventory (NEO-PI-R; Costa & McCrae, 1992), in a clinical sample (N ¼ 132). The results indicated that: (1) DAS perfectionism reflects the self-critical aspects of the broader perfectionism construct rather than the active achievement striving aspects; (2) DAS need for approval generally lacks an association with positive interpersonal traits and shares much in common with DAS perfectionism; and (3) with shared …


The Longitudinal Relationship Of Personality Traits And Disorders, Megan B. Warner, Leslie C. Morey, John F. Finch, John G. Gunderson, Andrew E. Skodol, Charles A. Sanislow, M. Tracie Shea, Thomas H. Mcglashan, Carlos M. Grilo Apr 2004

The Longitudinal Relationship Of Personality Traits And Disorders, Megan B. Warner, Leslie C. Morey, John F. Finch, John G. Gunderson, Andrew E. Skodol, Charles A. Sanislow, M. Tracie Shea, Thomas H. Mcglashan, Carlos M. Grilo

Charles A. Sanislow, Ph.D.

Personality disorders are presumed to be stable because of underlying stable and maladaptive personality traits, but while previous research has demonstrated a link between personality traits and personality disorders cross-sectionally, personality disorders and personality traits have not been linked longitudinally. This study explores the extent to which relevant personality traits are stable in individuals diagnosed with 4 personality disorders (schizotypal, borderline, avoidant, and obsessive-compulsive personality disorders) and examines the assumption that these personality disorders are stable by virtue of stable personality traits. This assumption was tested via the estimation of a series of latent longitudinal models that evaluated whether changes …