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Jonathan Shedler

Publications and source records attributed to Jonathan Shedler.

11 recordsLinked to original sources
PubMed2006

Predicting physical health: implicit mental health measures versus self-report scales.

Researchers have traditionally relied on self-report questionnaires to assess psychological well-being, but such measures may be unable to differentiate individuals who are genuinely psychologically healthy from those who maintain a facade or illusion of mental health based on denial and self-deception. Prior research suggests that clinically derived assessment procedures that assess implicit psychological processes may have advantages over self-report mental health measures. This prospective study compared the Early Memory Index, an implicit measure of mental health/distress, with a range of familiar self-report scales as predictors of physical health. The Early Memory Index showed significant prospective associations with health service utilization and clinically verified illness. In contrast, self-report measures of mental health, perceived stress, life events stress, and mood states did not predict health outcomes. The findings highlight the limitations of self-report questionnaires and suggest that implicit measures have an important role to play in mental health research.

Adult↗
PubMed2006

A prototype approach to personality disorder diagnosis.

OBJECTIVE: Virtually no research has tested alternatives to the diagnostic method used since DSM-III, which requires decisions about the presence/absence of individual diagnostic criteria, followed by counting symptoms and applying cutoffs (the count/cutoff method). This study tested an alternative, prototype matching procedure designed to simplify diagnosis. The procedure was applied to personality disorders. METHOD: A random national sample of psychiatrists and clinical psychologists (N=291) described a randomly selected patient in their care. Clinician-provided diagnostic data were used to generate categorical and dimensional DSM-IV diagnoses (number of symptoms present per disorder). Clinicians also used one of two prototype matching systems to provide a diagnosis for the selected patient. RESULTS: Prototype diagnosis led to reduced comorbidity relative to DSM-IV diagnosis, yielded similar estimates of validity in predicting criterion variables (adaptive functioning, treatment response, and etiology), and outperformed DSM-IV diagnosis in ratings of clinical utility and ease of use. Adding a personality health prototype further increased prediction. CONCLUSIONS: A simple prototype matching procedure provides a viable alternative for improving diagnosis of personality disorders in clinical practice. Prototype diagnosis has multiple advantages, including ease of use, minimization of artifactual comorbidity, compatibility with naturally occurring cognitive processes, and ready translation into both categorical and dimensional diagnosis.

Adaptation, Psychological↗
PubMed2006

Assessing personality change in psychotherapy with the SWAP-200: a case study.

Many studies document the efficacy of psychotherapy for acute syndromes such as depression, but less is known about personality change in patients treated for personality pathology. The Shedler-Westen Assessment Procedure (SWAP-200; Westen & Shedler, 1999a, 1999b) is an assessment tool that measures a broad spectrum of personality constructs and is designed to bridge the gap between the clinical and empirical traditions in personality assessment. In this article, we demonstrate the use of the SWAP-200 as a measure of change in a case study of a patient diagnosed with borderline personality disorder. We collected assessment data at the start of treatment and after 2 years of psychotherapy. The findings illustrate the personality processes targeted in intensive psychotherapy for borderline personality.

Adult↗
PubMed2006

Is the appendix a useful appendage? An empirical examination of depressive, passive-aggressive (negativistic), sadistic, and self-defeating personality disorders.

Decisions about whether to include depressive, passive-aggressive, sadistic, and self-defeating disorders in Axis II have been made difficult by a relative dearth of data. We report the results of a study identifying potential defining features of these diagnoses and assessing their distinctiveness from other Axis II personality disorders (PDs). A national sample of experienced psychiatrists and psychologists used the SWAP-200 to describe a patient with a current axis II disorder or an appendix or deleted PD from DSM-II-R. We examined clinicians' descriptions of patients to identify their most characteristic features, and then applied an empirical clustering procedure, Q-factor analysis, to see whether versions of these disorders would emerge empirically. As currently conceptualized, only passive-aggressive PD was distinct from other PDs. When the data were subjected to Q-factor analysis, the first and largest grouping was a dysphoric (depressive) PD. A hostile-negativistic subcategory emerged that resembled passive-aggressive PD, along with a revised dependent diagnosis that included many self-defeating/masochistic features. The results suggest that a depressive or dysphoric personality may represent an internalizing spectrum of personality pathology, and that a hostile-negativistic PD may be distinct from the disorders in the text of DSM-IV. Sadistic and self-defeating PD do not appear to represent distinct disorders, although they include personality traits (sadism and revictimization) associated with distinct developmental histories.

Depression↗
PubMed2005

Assessing adolescent personality pathology.

BACKGROUND: Personality pathology constitutes a major form of psychopathology in adolescents. AIMS: To examine the reliability and validity of a Q-sort instrument for assessing adolescent personality pathology designed for clinically experienced informants. METHOD: A sample of 294 randomly selected psychiatrists and psychologists each provided data on a current patient, aged 14-18 years. Clinicians completed several measures, including the Shedler-Westen Assessment Procedure for Adolescents (SWAP-200-A). RESULTS: Factor analysis identified II dimensions of adolescent personality: psychopathology/malignant narcissism, dysphoria/inhibition, psychological health, histrionic sexualisation, schizotypy, sexual conflict, emotional dysregulation, anxious obsessionality, peer rejection, delinquent behaviour and attentional dysregulation. These correlated in predicted ways with a range of criterion variables, including measures of adaptive functioning, Axis II pathology, the Five Factor Model and the Child Behavior Checklist. CONCLUSIONS: The SWAP-200-A shows promise as an instrument for assessing personality pathology in adolescents. Trait dimensions such as delinquent behaviour and emotional dysregulation may prove useful additions to a classification of personality.

Adolescent↗
PubMed2004

Dimensions of personality pathology: an alternative to the five-factor model.

OBJECTIVE: Researchers have advocated replacing the DSM-IV classification of personality disorders with an alternative diagnostic system based on the five-factor model. This study evaluates the clinical comprehensiveness of the five-factor model and addresses the broader question of how many factors, and which factors, are necessary to understand personality pathology. METHOD: A national sample of 530 psychiatrists and clinical psychologists used the Shedler-Westen Assessment Procedure (SWAP-200) to provide detailed psychological descriptions of patients with personality disorder diagnoses. The SWAP-200 is a 200-item instrument designed to capture the richness and complexity of clinical observations while also providing quantifiable data for research. We used factor analysis to identify dimensions of personality relevant to understanding personality pathology. RESULTS: The five-factor structure replicated in a content-restricted subset of 60 SWAP-200 items. However, factor analysis of the full SWAP-200 yielded a conceptually richer factor solution that did not resemble the five-factor model. The analysis identified 12 clinically relevant personality dimensions labeled psychological health, psychopathy, hostility, narcissism, emotional dysregulation, dysphoria, schizoid orientation, obsessionality, thought disorder, oedipal conflict (histrionic sexualization), dissociation, and sexual conflict. CONCLUSIONS: The five-factor model represents a sound distillation of the personality constructs used by laypersons. However, it omits key clinical constructs and may not capture the complexity of personality syndromes seen in clinical practice. The SWAP-200 factors may provide a framework for studying personality pathology that is both empirically grounded and clinically relevant.

Adult↗
PubMed2004

Refining personality disorder diagnosis: integrating science and practice.

OBJECTIVE: Personality disorder researchers are currently evaluating a range of potential solutions to problems with the DSM-IV diagnostic categories. This article proposes changes to the diagnostic categories and criteria based on empirical findings from a national sample of patients with personality disorder diagnoses. METHOD: The Shedler-Westen Assessment Procedure (SWAP-200) is a personality assessment tool designed to capture the richness and complexity of clinical personality descriptions while providing reliable and quantifiable data. A national sample of experienced psychiatrists and psychologists used the SWAP-200 to describe either their conceptions (prototypes) of personality disorders (N=267) or current patients with personality disorder diagnoses (N=530). RESULTS: Clinicians" conceptions of personality disorders and their descriptions of actual patients overlapped with the DSM descriptions but also differed in systematic ways. Their descriptions were clinically richer than the DSM descriptions and placed greater emphasis on patients" mental life or inner experience. The study identifies potential diagnostic criteria that may be more defining of personality syndromes than some of the current DSM criteria. CONCLUSIONS: Diagnostic criterion sets should be expanded to better address the multiple domains of functioning inherent in the concept of personality and should more explicitly address patients' mental life or inner experience. The authors offer recommendations for revision of the diagnostic categories and criteria and also propose a prototype matching approach to personality disorder diagnosis that may overcome limitations inherent in the current diagnostic system.

Diagnostic and Statistical Manual of Mental Disord↗
PubMed2003

Cloning the clinician: a method for assessing illusory mental health.

Self-report mental health scales cannot distinguish between genuine mental health and the facade or illusion of mental health created by psychological defenses. Shedler, Mayman, and Manis (1994) demonstrated that experienced clinicians can differentiate genuine from illusory mental health using the Early Memory Test, and that illusory mental health may be a risk factor for medical illness. This article describes the development of the Early Memory Index (EMI), a formal scoring system for the Early Memory Test, and presents evidence for its reliability and validity. The EMI makes the technique for assessing illusory mental health accessible to a wide range of investigators, including investigators who lack extensive clinical training.

Adult↗
PubMed2003

Personality diagnoses in adolescence: DSM-IV axis II diagnoses and an empirically derived alternative.

OBJECTIVE: The study of personality pathology in adolescence is in its infancy. This article examined the applicability and limits of DSM-IV axis II personality disorder diagnoses in adolescents, assessed the validity of a method for assessing adolescent personality pathology, and began to develop an empirically grounded classification. METHOD: A total of 296 randomly selected clinicians described a patient age 14-18 in treatment for maladaptive personality patterns using axis II ratings scales and the Shedler-Westen Assessment Procedure-200 for Adolescents (SWAP-200-A), a Q-sort instrument for assessing adolescent personality pathology. After examining the nature and frequency of axis II disorders in the sample, the authors used Q-factor analysis to identify naturally occurring groupings of patients on the basis of shared personality features. RESULTS: Axis II diagnoses in adolescents resembled those in adults, although application of DSM-IV criteria appeared to overdiagnose antisocial and avoidant personality disorder in adolescents. Q analysis with the SWAP-200-A isolated five personality disorders (antisocial-psychopathic, emotionally dysregulated, avoidant-constricted, narcissistic, and histrionic) and one personality style. Patients' dimensional scores on each diagnostic prototype showed predictable associations with ratings of current axis II disorders, measures of adaptive functioning, and symptoms assessed with the Child Behavior Checklist. CONCLUSIONS: With some exceptions, personality pathology in adolescence resembles that in adults and is diagnosable in adolescents ages 14-18. Categories and criteria developed for adults may not be the optimal way of diagnosing adolescents. Data from samples of adolescents may prove useful in developing an empirically and clinically grounded classification of personality pathology in adolescents.

Adolescent↗
PubMed2002

A new language for psychoanalytic diagnosis.

Many psychoanalysts believe it is impossible to conduct empirical research without eviscerating or trivializing psychoanalytic constructs, and past research efforts have all too often reinforced this view. A new method for studying personality and personality pathology is presented that challenges such beliefs. This method, the Shedler-Westen Assessment Procedure (SWAP), captures the richness and complexity of psychoanalytic constructs and formulations while also providing reliable data for research. The method is being used to develop a new personality disorder taxonomy, as an alternative to the DSM, that is both empirically grounded and psychoanalytically relevant. Its role in psychoanalytic training and supervision is discussed, as is its value as a measure of structural change in psychoanalytic process and outcome research.

Humans↗