13 results on '"Tim Bastiaens"'
Search Results
2. The Validation of a Five-Item Screening Scale for Personality Disorders in Dutch-Speaking Community Adolescents and Adults
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Kristina Eggermont, Koen Luyckx, Dirk Smits, Annabel Bogaerts, Tinne Buelens, Tim Bastiaens, Laurence Claes, and Klinische Psychologie (Psychologie, FMG)
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Clinical Psychology ,Psychology - Abstract
In Section III of the Diagnostic and Statistical Manual of Mental Disorders – fifth edition (DSM-5), an Alternative Model for Personality Disorders (AMPD) is proposed, including a criterion for personality functioning impairment (Criterion A) to assess severity of personality pathology. The present study examined the structure, reliability, and convergent validity of the Dutch version of a five-item screening scale for Criterion A—the Five-Item Screening Scale for Personality Disorders (FISSPD; Skodol et al., in Personality Disorders: Theory, Research, and Treatment, 2, 4-22, 2011)—in a community sample of 1,477 adolescents and 546 adults. To assess convergent validity, identity and personality (pathology) questionnaires were completed by adolescents and adults. Confirmatory factor analysis yielded a single factor structure for the FISSPD, which proved to be (partially) invariant across age and gender. Adequate reliability coefficients were obtained for the FISSPD. In both the adolescent and adult sample, significant correlations were found between the FISSPD and consolidated identity (negative) and disturbed identity/lack of identity (positive). In the adult sample, the FISSPD showed significant correlations with several personality disorders (and especially with the borderline personality disorder), maladaptive personality traits (Criterion B of the AMPD), and general personality impairment. In the adolescent sample, the FISSPD was positively correlated with borderline personality disorder characteristics. Furthermore, significant correlations were found with the Big-Five personality traits in the adolescent sample: the FISSPD correlated significantly positive with neuroticism, and negative with extraversion, agreeableness, and conscientiousness. In sum, the present study supports the reliability and validity of the FISSPD to screen for (severity of) personality pathology. ispartof: Journal Of Psychopathology And Behavioral Assessment vol:44 issue:2 pages:418-431 status: Published online
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- 2022
3. Case Report: Pathological Personality Traits Through the Lens of the ICD-11 Trait Qualifiers and the DSM-5 Section III Trait Model: Two Patients Illustrating the Clinical Utility of a Combined View
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Tim Bastiaens, Dirk Smits, and Laurence Claes
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050103 clinical psychology ,lcsh:RC435-571 ,media_common.quotation_subject ,Section (typography) ,Case Report ,DSM-5 ,03 medical and health sciences ,0302 clinical medicine ,ICD-11 ,lcsh:Psychiatry ,Psychoticism ,medicine ,Personality ,0501 psychology and cognitive sciences ,personality disorders ,Big Five personality traits ,media_common ,Psychiatry ,05 social sciences ,PID5BF+ M ,medicine.disease ,Personality disorders ,030227 psychiatry ,Psychiatry and Mental health ,Trait ,personality traits ,Normative ,Human medicine ,Psychology ,Clinical psychology - Abstract
We report on two individuals presenting for treatment as part of everyday clinical practice, comparing their pathological personality traits through the lens of the ICD-11 trait qualifiers and the DSM-5 Section III personality trait model. We compare higher order pathological personality domains and lower order pathological personality trait facets of patient M (diagnosed with borderline personality traits according to DSM-5 Section II), and patient L (diagnosed with obsessive-compulsive personality traits according to DSM-5 Section II) with normative data and with each other. Findings highlight the clinical utility of a ICD-11/DSM-5 combined view, including: (1) the Disinhibition/Anankastia personality domain distinction as advocated in the ICD-11 model, (2) the Psychoticism personality domain as conceptualized in the DSM-5 Section III personality trait model, as well as (3) the use of lower order personality trait facets within each higher order personality domain. This article is part of the research topic: "ICD-11 Personality Disorders: Utility and Implications of the New Model" ispartof: Frontiers In Psychiatry vol:12 pages:1-6 ispartof: location:Switzerland status: Published online
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- 2021
4. Model-based PID-5 domain clusters and levels of impairment in self and interpersonal functioning
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Tom F. Wilderjans, Laurence Claes, Tim Bastiaens, Marc De Hert, Benedicte Lowyck, Koen Luyckx, Dominique Vanwalleghem, and Annabel Bogaerts
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05 social sciences ,Psychopathy ,Personality pathology ,PID controller ,050109 social psychology ,macromolecular substances ,Interpersonal communication ,medicine.disease ,Personality disorders ,050105 experimental psychology ,DSM-5 ,Domain (ring theory) ,Trait ,medicine ,Psychology ,0501 psychology and cognitive sciences ,General Psychology ,Clinical psychology - Abstract
In the DSM-5 Section III Alternative Model for Personality Disorders (AMPD), the severity of personality pathology (criterion A) and the presence of pathological personality trait domains and facets (criterion B) are assessed independently. Recent studies have challenged this assumption of independence but the interplay between criterion A and criterion B remains subject of further research. Using model-based cluster analysis on the criterion B trait domains, we compared criterion B trait domain clusters with respect to criterion A severity measures. Results revealed a six-cluster solution. Four of the six clusters represented a gradual increase in criterion B trait domains, paralleling an increase in criterion A severity. Two clusters did not follow this pattern: an Anxious-Detached type exhibiting overall high criterion A severity scores, and an emotionally stable psychopathy type exhibiting a number of low criterion A severity scores. Our findings indicate that criterion B domain clusters are informative of criterion A severity, relevant for future conceptualizations of the AMPD.
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- 2021
5. Identity synthesis and confusion in early to late adolescents : age trends, gender differences, and associations with depressive symptoms
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Tim Bastiaens, Annabel Bogaerts, Nina Palmeroni, Laurence Claes, Koen Luyckx, Tinne Buelens, and Margaux Verschueren
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Adult ,Male ,Adolescent ,Social Psychology ,Identity (social science) ,050109 social psychology ,Age trends ,Young Adult ,Sex Factors ,Age groups ,Identity ,Negatively associated ,Developmental and Educational Psychology ,medicine ,Humans ,Psychology ,0501 psychology and cognitive sciences ,Child ,Depressive symptoms ,Confusion ,Depression ,05 social sciences ,Late adolescence ,Adolescence ,Psychiatry and Mental health ,Cross-Sectional Studies ,Identity development ,Pediatrics, Perinatology and Child Health ,EPSI ,Female ,medicine.symptom ,050104 developmental & child psychology ,Clinical psychology - Abstract
Introduction: Research on identity development has primarily studied over-time trends in identity status change and exploration and commitment processes among late adolescents and emerging adults. Identity development in early and mid-adolescents has generally been overlooked. Hence, little is known about how a sense of identity synthesis and confusion evolves from early to late adolescence for boys and girls. Methods: The present cross-sectional study examined gender-moderated age trends in identity synthesis and confusion from ages 12 to 25 among 5860 Belgian adolescents (56.1% girls; Mage = 16.09). In addition, using a subsample of 2782 participants, we investigated associations of identity synthesis and confusion with depressive symptoms in early, mid-, and late adolescents. Results: Mean scores on identity synthesis decreased from ages 12 to 15, subsequently increased from ages 15 to 23, and decreased again later on. Mean scores on identity confusion followed a parallel but opposite cubic trend. Gender differences in these age trends were dependent upon the developmental period. For all age groups, identity synthesis scores were negatively associated with depressive symptoms, whereas positive associations emerged between identity confusion and depressive symptoms. Conclusions: From 12 to 25 years old, individuals experience an increasing sense of identity synthesis and less identity confusion, despite fluctuations that appear to be dependent upon the developmental period. Identity synthesis and confusion seem to be strongly negatively and positively associated with depressive symptoms in early, mid-, and late adolescents. ispartof: Journal Of Adolescence vol:87 pages:106-116 ispartof: location:England status: published
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- 2021
6. The Relationship Between the Personality Inventory for the DSM-5 (PID-5) and the Psychotic Disorder in a Clinical Sample
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Erik Thys, Tim Bastiaens, Teresa Teugels, Ludi Van Bouwel, Dirk Smits, Dominique Vanwalleghem, Kim Sweers, Laurence Claes, Hendrik Bryon, Joeri Van Looy, Tim Verwerft, and Marc De Hert
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Adult ,Male ,050103 clinical psychology ,medicine.medical_specialty ,Psychosis ,Adolescent ,Personality Inventory ,medicine.medical_treatment ,050109 social psychology ,Personality Disorders ,DSM-5 ,Young Adult ,Discriminant function analysis ,Psychoticism ,medicine ,Psychology ,Humans ,0501 psychology and cognitive sciences ,Antipsychotic ,Psychiatry ,Applied Psychology ,Aged ,05 social sciences ,Discriminant Analysis ,Middle Aged ,medicine.disease ,Personality disorders ,Diagnostic and Statistical Manual of Mental Disorders ,Clinical Psychology ,Psychotic Disorders ,Facet (psychology) ,Female ,Personality Assessment Inventory ,Clinical psychology - Abstract
Recent studies have successfully investigated the validity of the DSM-5 Alternative Model for Personality Disorders. In a final sample of 174 psychiatric patients, the present study examined the relationship between the Personality Inventory for the DSM-5 (PID-5) and syndromal psychosis. Results showed that patients diagnosed with versus without a psychotic disorder significantly differed on all PID-5 domains except Antagonism. Discriminant function analysis indicated that lower Detachment, lower Negative Affect, lower Disinhibition, and higher Psychoticism best discriminated patients with a psychotic disorder from patients with other psychiatric conditions. Subsequent stepwise discriminant analysis on all facet scales of the contributing PID-5 domains revealed that higher Unusual Beliefs, lower Depressivity, and lower Distractibility contributed the most to this differentiation. PID-5 Psychoticism scores showed moderate correlations with current psychotic symptoms and were not influenced by dose of antipsychotic medication. Our results support the ability of the PID-5 to discriminate between patients with and without psychotic disorder. ispartof: Assessment vol:26 issue:2 pages:315-323 ispartof: location:United States status: published
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- 2017
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7. Identity impairment as a central dimension in personality pathology
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Erin A. Kaufman, Laurence Claes, Annabel Bogaerts, Tim Bastiaens, and Koen Luyckx
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050103 clinical psychology ,05 social sciences ,Personality pathology ,Identity (social science) ,food and beverages ,medicine.disease ,Personality disorders ,language.human_language ,Clinical Psychology ,Flemish ,language ,medicine ,Psychology ,0501 psychology and cognitive sciences ,Correlational analysis ,050104 developmental & child psychology ,Clinical psychology - Abstract
Section III of the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) includes an alternative model for diagnosing personality disorders (PDs). This model highlights identity impairment as a potential criterion of all PDs, which has stimulated researchers to characterize identity functioning across PD presentations. Accordingly, the present study examined associations between dimensions of identity functioning and PD symptomatology among 242 Flemish community adults (49.2% female; Mage = 42.76, SD = 14.42). Participants completed the Self-Concept and Identity Measure (Kaufman, Cundiff, & Crowell, 2015) to assess identity functioning and the Assessment of DSM-IV Personality Disorders (Schotte, De Doncker, Vankerckhoven,Vertommen, & Cosyns, 1998) to assess dimensionally measured PDs. A correlational analysis yielded negative associations between the consolidated identity subscale and all PDs, whereas scores on both disturbed identity and lack of identity scales were positively associated with PDs. A multivariate regression analysis indicated that the consolidated identity scale did not account for unique variance in PD dimensions. Disturbed identity and lack of identity scale scores positively predicted variance in all PDs, with the lack of identity scale being the stronger predictor of symptoms of paranoid, schizotypal, and borderline PDs. Study findings generally support identity impairment as a central dimension in PD symptomatology in a Flemish community sample. ispartof: Journal Of Psychopathology And Behavioral Assessment vol:43 issue:1 pages:1-10 status: Published online
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- 2020
8. International Assessment of DSM-5 and ICD-11 Personality Disorder Traits: Toward a Common Nosology in DSM-5.1
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Andrea Fossati, Włodzimierz Strus, Jens C. Thimm, Bo Bach, André Kerber, Aidan G. C. Wright, Lucas Spanemberg, Jean Pierre Rolland, Laurence Claes, Tim Bastiaens, Johannes Zimmermann, Fernando Gutiérrez, Antonella Somma, Anton Aluja, Karel D. Riegel, Jared W. Keeley, Martin Sellbom, Rute Pires, Sérgio Eduardo Silva de Oliveira, Isabelle Roskam, Bach, B., Kerber, A., Aluja, A., Bastiaens, T., Keeley, J. W., Claes, L., Fossati, A., Gutierrez, F., Oliveira, S. E. S., Pires, R., Riegel, K. D., Rolland, J. -P., Roskam, I., Sellbom, M., Somma, A., Spanemberg, L., Strus, Wl., Thimm, J. C., Wright, A. G. C., and Zimmermann, J.
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Male ,Nosology ,Personality Inventory ,Trait ,INVENTORY ,PsyArXiv|Social and Behavioral Sciences|Clinical Psychology|Diagnosis ,PsyArXiv|Social and Behavioral Sciences|Clinical Psychology ,DSM-5.1 ,bepress|Social and Behavioral Sciences|Psychology|Clinical Psychology ,0302 clinical medicine ,Diagnosis ,CRITERIA ,media_common ,Psychiatry ,PSYCHOPATHOLOGY ,Diagnostic and Statistical Manual of Mental Disorders ,Psychiatry and Mental health ,Clinical Psychology ,Female ,Personality Assessment Inventory ,Psychology ,Life Sciences & Biomedicine ,PsyArXiv|Social and Behavioral Sciences|Clinical Psychology|Personality Disorders ,Clinical psychology ,DOMAINS ,media_common.quotation_subject ,Personality Disorders ,DSM-5 ,CLASSIFICATION ,Negative affectivity ,03 medical and health sciences ,International Classification of Diseases ,ICD-11 ,Psychoticism ,medicine ,Humans ,bepress|Medicine and Health Sciences|Medical Specialties|Psychiatry ,Personality ,PID-5 ,Science & Technology ,SECTION II ,PsyArXiv|Social and Behavioral Sciences|Clinical Psychology|Assessment ,CLINICAL UTILITY ,medicine.disease ,Personality disorders ,030227 psychiatry ,MODEL ,PsyArXiv|Social and Behavioral Sciences ,Personality disorder classification ,PsyArXiv|Psychiatry ,bepress|Social and Behavioral Sciences ,MULTIDIMENSIONAL PERFECTIONISM ,Human medicine ,030217 neurology & neurosurgery - Abstract
Introduction: The DSM-5 Alternative Model of Personality Disorders (AMPD) and the ICD-11 classification of personality disorders (PD) are largely commensurate and, when combined, they delineate 6 trait domains: negative affectivity, detachment, antagonism/dissociality, disinhibition, anankastia, and psychoticism. Objective: The present study evaluated the international validity of a brief 36-item patient-report measure that portrays all 6 domains simultaneously including 18 primary subfacets. Methods: We developed and employed a modified version of the Personality Inventory for DSM-5 – Brief Form Plus (PID5BF+). A total of 16,327 individuals were included, 2,347 of whom were patients. The expected 6-factor structure of facets was initially investigated in samples from Denmark (n = 584), Germany (n = 1,271), and the USA (n = 605) and subsequently replicated in both patient- and community samples from Italy, France, Switzerland, Belgium, Norway, Portugal, Spain, Poland, Czech Republic, the USA, and Brazil. Associations with interview-rated DSM-5 PD categories were also investigated. Results: Findings generally supported the empirical soundness and international robustness of the 6 domains including meaningful associations with familiar interview-rated PD types. Conclusions: The modified PID5BF+ may be employed internationally by clinicians and researchers for brief and reliable assessment of the 6 combined DSM-5 and ICD-11 domains, including 18 primary subfacets. This 6-domain framework may inform a future nosology for DSM-5.1 that is more reasonably aligned with the authoritative ICD-11 codes than the current DSM-5 AMPD model. The 36-item modified PID5BF+ scoring key is provided in online supplementary Appendix A see www.karger.com/doi/10.1159/000507589 (for all online suppl. material).
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- 2020
9. Self-reported cognitive biases are equally present in patients diagnosed with psychotic versus nonpsychotic disorders
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Tim Bastiaens, Dominique Vanwalleghem, Laurence Claes, Marc De Hert, and Dirk Smits
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Personality Inventory ,medicine.medical_treatment ,media_common.quotation_subject ,03 medical and health sciences ,0302 clinical medicine ,Cognition ,Bias ,Psychoticism ,medicine ,Personality ,Humans ,In patient ,Antipsychotic ,media_common ,Salience (language) ,Mental Disorders ,Cognitive bias ,030227 psychiatry ,Psychiatry and Mental health ,Psychotic Disorders ,Self Report ,Human medicine ,Personality Assessment Inventory ,Psychology ,030217 neurology & neurosurgery ,Clinical psychology ,Antipsychotic Agents - Abstract
We investigated the relation between subjective cognitive biases measured with the Dutch Davos Assessment of Cognitive Biases (DACOBS-NL) and (1) the presence of a psychotic versus nonpsychotic psychiatric disorder, (2) the current dose of antipsychotic medication and current psychotic symptoms, and (3) the Personality Inventory for the DSM-5 (PID-5) Psychoticism personality trait. Results showed that DACOBS-NL subjective cognitive biases (1) were equally present in patients diagnosed with nonpsychotic disorders compared with patients with a psychotic disorder, (2) could not be explained by the current dose of antipsychotic medication, nor by current psychotic symptoms, and (3) significantly correlated with all PID-5 Personality domains. Moreover, in predicting membership of the psychotic versus nonpsychotic psychiatric disorder group, the addition of the PID-5 domains in step 2 rendered the contribution of the DACOBS-NL subjective cognitive biases in step 1 nonsignificant. Further research is needed to clarify the interplay between cognitive biases and aberrant salience in the prediction of psychotic disorders.
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- 2018
10. Dimensional assessment of personality disorders diagnosing Tony Soprano, Norman Bates, Hercule Poirot, and Carol Beer through the DSM-5 AMPD
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Tim Bastiaens, Laurence Claes, and Samuel Greiff
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050103 clinical psychology ,03 medical and health sciences ,0302 clinical medicine ,05 social sciences ,medicine ,Psychology ,0501 psychology and cognitive sciences ,medicine.disease ,Personality disorders ,Applied Psychology ,030227 psychiatry ,Clinical psychology - Abstract
ispartof: EUROPEAN JOURNAL OF PSYCHOLOGICAL ASSESSMENT vol:34 issue:5 pages:291-294 status: Published online
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- 2018
11. The Penn State Worry Questionnaire—Past Day: Development and Validation of a Measure Assessing Daily Levels of Worry
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Tim Bastiaens, Koen Demyttenaere, Dirk Hermans, Debora Vansteenwegen, Els Joos, Guido Pieters, and Els Brunfaut
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Clinical Psychology ,Measure (data warehouse) ,Convergent validity ,Psychometrics ,media_common.quotation_subject ,Scale (social sciences) ,Trait ,Worry ,Psychology ,Reliability (statistics) ,Confirmatory factor analysis ,Clinical psychology ,media_common - Abstract
Based on the widely used Penn State Worry Questionnaire for trait worry, a scale was developed to measure the level of worry experienced during the past 24 h. This instrument, the Penn State Worry Questionnaire—Past Day (PSWQ-PD), was administered to a student sample and two clinical samples. The PSWQ-PD demonstrated high internal consistency, good convergent validity and adequate test-retest reliability. A confirmatory factor analysis revealed that a unifactorial solution provided the best fit. Moreover, it was shown that the PSWQ-PD is a more state-like worry measure than the original PSWQ. The PSWQ-PD is a promising, brief tool for daily worry assessment, which is apt for frequent administration.
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- 2011
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12. The construct validity of the Dutch personality inventory for DSM-5 personality disorders (PID-5) in a clinical sample
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Tim Bastiaens, Stephan Claes, Filip De Fruyt, Benedicte Lowyck, Rudi Vermote, Marc De Hert, Laurence Claes, Dominique Vanwalleghem, Barbara De Clercq, Gina Rossi, Dirk Smits, Clinical and Lifespan Psychology, and Psychopathology and Information Processing in Older Adults
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050103 clinical psychology ,Personality Inventory ,media_common.quotation_subject ,assessment ,CULTURES ,Social Sciences ,TRAIT MODEL ,GENERAL PERSONALITY ,Personality Disorders ,DSM-5 ,03 medical and health sciences ,0302 clinical medicine ,AGE ,Self-report inventory ,medicine ,Personality ,Humans ,0501 psychology and cognitive sciences ,personality disorders ,Big Five personality traits ,PID-5 ,Applied Psychology ,media_common ,Netherlands ,PSYCHOPATHOLOGY-5 PSY-5 ,FIT INDEXES ,05 social sciences ,Discriminant validity ,Construct validity ,Reproducibility of Results ,medicine.disease ,Personality disorders ,030227 psychiatry ,Clinical Psychology ,PATHOLOGICAL PERSONALITY ,Convergent validity ,IV ,personality traits ,DIMENSIONAL MODELS ,Personality Assessment Inventory ,Psychology ,MALADAPTIVE TRAITS ,Software ,Clinical psychology - Abstract
The factor structure and the convergent validity of the Personality Inventory for DSM-5 (PID-5), a self-report questionnaire designed to measure personality pathology as advocated in the fifth edition, Section III of Diagnostic and Statistical Manual of Mental Disorders ( DSM-5), are already demonstrated in general population samples, but need replication in clinical samples. In 240 Flemish inpatients, we examined the factor structure of the PID-5 by means of exploratory structural equation modeling. Additionally, we investigated differences in PID-5 higher order domain scores according to gender, age and educational level, and explored convergent and discriminant validity by relating the PID-5 with the Dimensional Assessment of Personality Pathology—Basic Questionnaire and by comparing PID-5 scores of inpatients with and without a DSM-IV categorical personality disorder diagnosis. Our results confirmed the original five-factor structure of the PID-5. The reliability and the convergent and discriminant validity of the PID-5 proved to be adequate. Implications for future research are discussed.
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- 2016
13. DSM-5 section III personality traits and section II personality disorders in a Flemish community sample
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Marc De Hert, Dirk Smits, Dominique Vanwalleghem, Tim Bastiaens, and Laurence Claes
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Adult ,Male ,050103 clinical psychology ,Psychometrics ,Personality Inventory ,media_common.quotation_subject ,Personality Disorders ,Developmental psychology ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Surveys and Questionnaires ,medicine ,16PF Questionnaire ,Personality ,Humans ,0501 psychology and cognitive sciences ,Big Five personality traits ,Biological Psychiatry ,media_common ,Language ,05 social sciences ,Alternative five model of personality ,Reproducibility of Results ,Middle Aged ,medicine.disease ,Personality disorders ,030227 psychiatry ,Diagnostic and Statistical Manual of Mental Disorders ,Psychiatry and Mental health ,Facet (psychology) ,Regression Analysis ,Female ,Human medicine ,Self Report ,Personality Assessment Inventory ,Psychology ,Clinical psychology - Abstract
The Personality Inventory for DSM-5 (PID-5; Krueger et al., 2012) is a dimensional self-report questionnaire designed to measure personality pathology according to the criterion B of the DSM-5 Section III personality model. In the current issue of DSM, this dimensional Section III personality model co-exists with the Section II categorical personality model derived from DSM-IV-TR. Therefore, investigation of the inter-relatedness of both models across populations and languages is warranted. In this study, we first examined the factor structure and reliability of the PID-5 in a Flemish community sample (N=509) by means of exploratory structural equation modeling and alpha coefficients. Next, we investigated the predictive ability of section III personality traits in relation to section II personality disorders through correlations and stepwise regression analyses. Results revealed a five factor solution for the PID-5, with adequate reliability of the facet scales. The variance in Section II personality disorders could be predicted by their theoretically comprising Section III personality traits, but additional Section III personality traits augmented this prediction. Based on current results, we discuss the Section II personality disorder conceptualization and the Section III personality disorder operationalization. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
- Published
- 2015
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