A Comparison of Passive–Aggressive and Negativistic Personality Disorders

Passive–aggressive personality disorder (PAPD) has historically played an important role in clinical theorizing and was diagnosable prior to the Diagnostic and Statistical Manual of Mental Disorders (4th ed. [DSM–IV]; American Psychiatric Association, 1994), in which the construct was relabeled negativistic (NEGPD), expanded to include negative affective symptoms, and appendicized. In this study we tested the hypothesis that the expansion of PAPD to include content related to negative moods and nonspecific personality pathology compromised its discriminant validity. In an undergraduate sample (N = 1,215), a self-report measure of PAPD was only moderately related to NEGPD and showed less diagnostic overlap with other personality disorders than NEGPD. Furthermore, a conjoint factor analysis yielded a strong first factor (moodiness) that appeared less specific to passive–aggressive behavior than 3 other factors (irresponsibility, inadequacy, and contempt). We conclude that future research on this potentially important clinical construct should focus on core passive–aggressive features and abandon the negativistic content that has been added to it in successive editions of the DSM.     

An interpersonal perspective on the personality assessment process

Many aspects of therapeutic approaches to the personality assessment process derived from or are consistent with Sullivan's interpersonal approach to clinical practice, but the link between such approaches and contemporary interpersonal theory remains underdeveloped. In this article, I argue that contemporary interpersonal theory provides a valuable framework within which to conceptualize the personality assessment process. Specifically, I argue that interpersonal models can parsimoniously represent client behavior and can facilitate discussions of assessment data with assessees. Further, I show that hypotheses on the therapeutic mechanisms of personality assessment can be reframed in contemporary interpersonal metatheory so that they can be compared and tested directly.     

Emotional Problems Suppress Disorder/Performance Associations in Adult ADHD Assessment

Issues related to Attention Deficit Hyperactivity Disorder (ADHD) are commonly assessed using a combination of indicators, including patient report and performance on cognitive tasks. The current study investigates the potential that emotional problems may suppress the relationship between objective continuous performance test (CPT) results and ADHD symptoms in a sample of 53 young adults referred to an outpatient clinic for cognitive evaluations, 26 of whom met diagnostic criteria for ADHD. Data indicate that emotional problems and continuous performance represent unique elements of adult ADHD, whether assessed via interview or self-report. Results also indicate that emotional problems do suppress CPT–ADHD relations, suggesting that failure to control for emotional problems may account, in part, for modest associations in the literature between CPT performance and other indicators of ADHD.     

Commentary on “Trauma to the Psyche and Soma”

This case report addresses assessment and treatment considerations for a patient suffering from posttraumatic stress disorder (PTSD) in the context of mild traumatic brain injury and ongoing pain. Management of this case is based on the application of evidence-based therapy, and of cognitive behaviour therapy, for PTSD reduction. Assessment and treatment approaches recognize that delivery of treatment requires modification to allow exposure therapy for individuals who are partially amnesic of their traumatic experience. Further, administering exposure and cognitive therapy for patients with cognitive impairment requires specific means of treatment delivery to allow adequate compliance with therapy tasks. This case highlights that evidence-based approaches can be usefully applied to complex presentations but they may require modifications that recognize obstacles associated with comorbid conditions.     

Development and Validation of Personality Disorder Spectra Scales for the MMPI–2–RF

The purpose of this study was to develop and validate a set of MMPI–2–RF (Ben-Porath &; Tellegen, 2008/2011) personality disorder (PD) spectra scales. These scales could serve the purpose of assisting with DSM–5 PD diagnosis and help link categorical and dimensional conceptions of personality pathology within the MMPI–2–RF. We developed and provided initial validity results for scales corresponding to the 10 PD constructs listed in the DSM–5 using data from student, community, clinical, and correctional samples. Initial validation efforts indicated good support for criterion validity with an external PD measure as well as with dimensional personality traits included in the DSM–5 alternative model for PDs. Construct validity results using psychosocial history and therapists' ratings in a large clinical sample were generally supportive as well. Overall, these brief scales provide clinicians using MMPI–2–RF data with estimates of DSM–5 PD constructs that can support cross-model connections between categorical and dimensional assessment approaches.     

Confirmatory Validation and Measurement Equivalence of the Eating Loss of Control Scale in Binge Eating and Non-Clinical Samples

Although Loss of Control (LOC) is a transdiagnostic factor in eating pathology, there are few standalone assessments of LOC. The objective of this study was to evaluate the uni-dimensionality and measurement equivalence of the Eating Loss of Control Scale (ELOCS). Confirmatory factor analyses were used to achieve a well-fitting uni-dimensional model in clinical (N?=?226) and non-clinical (N?=?476) samples. Measurement equivalence was tested in a factor analytic framework, and effect sizes were computed to evaluate the impact of non-equivalence. A well-fitting model was achieved in both samples after the removal of 4 items. The instrument showed configural equivalence but not metric equivalence. Results suggest that the ELOCS is a reliable and valid measure of LOC in clinical and non-clinical samples. However, while the nature of the LOC construct is similar across binge eating and non-clinical participants, comparisons of ELOCS across these groups are affected by measurement non-equivalence. This research also revealed novel insights into the relative sensitivity of model fitting and effect size approaches to investigating measurement equivalence.     

The Structure and Nature of the Broader Autism Phenotype in a Non-clinical Sample

The broader autism phenotype (BAP) is a subclinical behavioral phenotype that is qualitatively similar to autism spectrum disorders (ASDs). Research on the BAP has used different conceptualizations of this construct. To more closely approximate the nature of the BAP, the current study utilized traditional construct validation methods to identify the BAP structure and characterize its nomological net in undergraduates. A conjoint exploratory factor analysis of the scales from three self-report measures of the construct was used to derive three robust BAP dimensions reflecting pragmatic language difficulties, aloofness, and rigidity. These dimensions were then correlated with theoretically-relevant personality, psychopathology, and interest variables in order to evaluate the criterion validity of the BAP. Correlations were generally consistent with our predictions and showed strongest relations between BAP dimensions and poor communication skills, impaired social functioning, and behavioral and cognitive rigidity. This research represents a first step in the identification and utilization of a common conceptualization of the BAP.