"An item response theory integration of normal and abnormal personality scales": Correction to Samuel et al (2010).

Reports an error in "An item response theory integration of normal and abnormal personality scales" by Douglas B. Samuel, Leonard J. Simms, Lee Anna Clark, W. John Livesley and Thomas A. Widiger (Personality Disorders: Theory, Research, and Treatment, 2010[Jan], Vol 1[1], 5-21). In the acknowledgments, Douglas Samuel was incorrectly listed as the author of the DAPP-BQ instrument. John Livesley is the correct author of the DAPP-BQ instrument. (The following abstract of the original article appeared in record 2010-01479-005.) The Diagnostic and Statistical Manual of Mental Disorders (DSM–IV–TR) currently conceptualizes personality disorders (PDs) as categorical syndromes that are distinct from normal personality. However, an alternative dimensional viewpoint is that PDs are maladaptive expressions of general personality traits. The dimensional perspective postulates that personality pathology exists at a more extreme level of the latent trait than does general personality. This hypothesis was examined using item response theory analyses comparing scales from two personality pathology instruments—the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ; Livesley & Jackson, in press) and the Schedule for Nonadaptive and Adaptive Personality (SNAP; Clark, 1993; Clark, Simms, Wu, & Casillas, in press)—with scales from an instrument designed to assess normal range personality, the NEO Personality Inventory–Revised (NEO PI-R; Costa & McCrae, 1992). The results indicate that respective scales from these instruments assess shared latent constructs, with the NEO PI-R providing more information at the lower (normal) range and the DAPP-BQ and SNAP providing more information at the higher (abnormal) range. Nevertheless, the results also demonstrated substantial overlap in coverage. Implications of the findings are discussed with respect to the study and development of items that would provide specific discriminations along underlying trait continua. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An item response theory integration of normal and abnormal personality scales.

[Correction Notice: An erratum for this article was reported in Vol 1(3) of Personality Disorders: Theory, Research, and Treatment (see record 2010-17135-005). In the acknowledgments, Douglas Samuel was incorrectly listed as the author of the DAPP-BQ instrument. John Livesley is the correct author of the DAPP-BQ instrument.] The Diagnostic and Statistical Manual of Mental Disorders (DSM–IV–TR) currently conceptualizes personality disorders (PDs) as categorical syndromes that are distinct from normal personality. However, an alternative dimensional viewpoint is that PDs are maladaptive expressions of general personality traits. The dimensional perspective postulates that personality pathology exists at a more extreme level of the latent trait than does general personality. This hypothesis was examined using item response theory analyses comparing scales from two personality pathology instruments—the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ; Livesley & Jackson, in press) and the Schedule for Nonadaptive and Adaptive Personality (SNAP; Clark, 1993; Clark, Simms, Wu, & Casillas, in press)—with scales from an instrument designed to assess normal range personality, the NEO Personality Inventory–Revised (NEO PI-R; Costa & McCrae, 1992). The results indicate that respective scales from these instruments assess shared latent constructs, with the NEO PI-R providing more information at the lower (normal) range and the DAPP-BQ and SNAP providing more information at the higher (abnormal) range. Nevertheless, the results also demonstrated substantial overlap in coverage. Implications of the findings are discussed with respect to the study and development of items that would provide specific discriminations along underlying trait continua. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Genetic relationships between personality and eating attitudes and behaviors.

Genetic and environmental factors underlying relationships between personality traits and disordered eating were examined in 256 female adolescent twin pairs (166 monozygotic, 90 dizygotic). Eating behaviors were assessed with the Total Score, Body Dissatisfaction, Weight Preoccupation, Binge Eating, and Compensatory Behavior subscales from the Minnesota Eating Disorders Inventory (M-EDI; K. L. Klump, M. McGue, & W. G. Iacono, 2000). Personality characteristics were assessed with the Negative Emotionality, Positive Emotionality, and Constraint scales from the Multidimensional Personality Questionnaire: (MPQ; A. Tellegen, 1982). Model-fitting analyses indicated that although genetic factors were more likely to contribute to MPQ and M-EDI phenotypic associations than environmental factors, shared genetic variance between the 2 phenotypes was limited. MPQ personality characteristics may represent only some of several genetic risk factors for eating pathology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sensitivity of MMPI-2 validity scales to underreporting of symptoms.

Standard and supplementary scales designed to detect underreporting of symptoms on the Minnesota Multiphasic Personality Inventory (S. R. Hathaway & J. C. McKinley, 1983) and Minnesota Multiphasic Personality Inventory (MMPI-2; J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989) were investigated in two groups of participants. Fifty individuals who completed the MMPI-2 under a fake-good instruction set were compared to 50 matched individuals who completed it under the standard instructions. Fake-good participants scored significantly higher than standard participants on all underreporting scales. Effect sizes showed that fake good participants differed from standard participants by nearly 2 SD on the average. Hierarchical regression and discriminant function analyses suggested that two supplementary underreporting scales, J. S. Wiggins's (1959) Social Desirability Scale and the Superlative Scale (J. N. Butcher & K. Han, 1993), have significant incremental validity over the traditional L and K scales in discriminating standard from underreported profiles. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Comparison of the MMPI-2 Personality Psychopathology Five (PSY-5), the NEO-PI, and the NEO-PI—R.

This study examined relations between Minnesota Multiphasic Personality Inventory Personality Psychopathology Five (PSY-5; A. R. Harkness, J. L. McNulty, & Y. S. Ben-Porath, 1995), NEO Personality Inventory (NEO-PI; P. T. Costa & R. R. McCrae, 1985), and the revised NEO-PI (NEO-PI—R; P. T. Costa & R. R. McCrae, 1992) scores in community (N?=?170) and clinical (N?=?57) samples. In the clinical sample, the temporal stability of the scales and their associations with personality disorder symptom counts were also assessed. Correlations between the two instruments demonstrated meaningful relations between the two sets of constructs in both samples. Both instruments showed substantial stability over 6 months, and both were significant and substantial predictors of symptom counts for most personality disorders. The data support the reinterpretation of personality disorders in terms of underlying dimensions of personality. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Cross-cultural replication of the five-factor model and comparison of the NEO-PI-R and MMPI-2 PSY-5 scales in a Dutch psychiatric sample.

The authors investigated cross-cultural replicability of the five-factor model (FFM) of personality as represented by the revised NEO Personality Inventory (NEO-PI-R; P. T. Costa & R. R. McCrae, 1992) in a sample of 423 Dutch psychiatric patients. Also, NEO-PI-R domain scales were compared with the Personality Psychopathology Five (PSY-5; A. R. Harkness & J. L. McNulty, 1994) scales of the Minnesota Multiphasic Personality Inventory--2 (J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 2002). Principal-components analysis with procrustean rotation confirmed the hypothesized structural similarity of the present sample with the U.S. normative factor scores. All of the hypothesized relations between NEO-PI-R and PSY-5 scales were confirmed. The results provide evidence for cross-cultural replicability of the FFM and for validity of the NEO-PI-R and PSY-5 constructs in the psychological assessment of psychiatric patients. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Racial bias in personality assessment: Using the MMPI-2 to predict psychiatric diagnoses of African American and Caucasian chemical dependency inpatients.

An assessment of predictive bias was conducted on numerous scales of the Minnesota Multiphasic Personality Inventory–2 (MMPI-2; J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989), including the Restructured Clinical (RC) scales, in the prediction of clinical diagnostic status for African American and Caucasian male veterans seeking substance abuse treatment. Patients completed a battery of self-report instruments and were administered structured diagnostic interviews. African American patients obtained higher scores across most MMPI-2 scales compared with Caucasians with clinically meaningful elevations (T scores > 5 points) on 3 scales. The RC scales demonstrated strong correlations with diagnoses, however, like other MMPI-2 scales examined in this study, they displayed a general trend of predictive bias. Step-down hierarchical regression procedures (G. J. Lautenschlager & J. L. Mendoza, 1986) indicated the presence of predictive bias for a majority of the scales examined; however, most of these effects were small to modest (accounting for 3%–5% of variance). The pattern of slope and intercept biases across types of MMPI-2 scales differs from prior research and indicates the importance of evaluating bias in various populations and settings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Interpersonal problems, personality pathology, and social adjustment after cognitive therapy for depression.

The authors examined the level and structure- of the Inventory of Interpersonal Problems--Circumplex version (IIP-C; L. M. Horowitz. L. E. Alden, J. S. Wiggins, & A. L. Pincus, 2000) before and after 20 sessions of acute-phase cognitive therapy for depression (N=118), as well as associations with the Schedule for Nonadaptive and Adaptive Personality (L. A. Clark, 1993b) and the Social Adjustment Scale--Self-Report version (M. M. Weissman & S. Bothwell, 1976). Interpersonal problems had a 3-factor structure (Interpersonal Distress, Love, and Dominance), with the latter 2 factors approximating a circumplex, both before and after therapy. Interpersonal Distress decreased and social adjustment increased with therapy, but the Love and Dominance dimensions were relatively stable, similar to personality constructs. Social adjustment related negatively to Interpersonal Distress but not to Love or Dominance. Personality pathology related broadly to Interpersonal Distress and discriminantly to Love and Dominance. These findings support the reliability and validity of the IIP-C and are discussed in the context of personality theory and measurement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Heritability of facet-level traits in a cross-cultural twin sample: support for a hierarchical model of personality

The common variance among personality traits can be summarized in the factors of the five-factor model, which are known to be heritable. This study examined heritability of the residual specific variance in facet-level traits from the Revised NEO Personality Inventory. Analyses of raw and residual facet scales across Canadian (183 monozygotic [MZ] and 175 dizogotic [DZ] pairs) and German (435 MZ and 205 DZ pairs) twin samples showed genetic and environmental influences of the same type and magnitude across the 2 samples for most facets. Additive genetic effects accounted for 25% to 65% of the reliable specific variance. Results provide strong support for hierarchical models of personality that posit a large number of narrow traits in addition to a few broader trait factors or domains. Facet-level traits are not simply exemplars of the broad factors they define; they are discrete constructs with their own heritable and thus biological basis.     

The structure of maladaptive personality traits in childhood: A step toward an integrative developmental perspective for DSM-V.

The present study describes the construction of a taxonomy of trait-related symptoms in childhood, the Dimensional Personality Symptom Item Pool (DIPSI), and examines the replicability of the taxonomy's higher order structure across maternal ratings of referred (N = 205) and nonreferred (N = 242) children and self-ratings of adolescents (N = 453). The DIPSI's 4 higher order factors--that is, Emotional Instability, Disagreeableness, Introversion, and Compulsivity--showed clear correspondence with the dimensions of personality pathology found in adulthood (Dimensional Assessment of Personality Pathology-Basic Questionnaire; W. J. Livesley, 1990; Schedule for Nonadaptive and Adaptive Personality; L. A. Clark, 1993). These 4 factors can be further organized into 2 superfactors, representing Internalizing and Externalizing Traits, demonstrating empirical and conceptual relationships with psychopathology models in childhood and adulthood. The implications for the assessment and conceptualization of early trait pathology are discussed in the context of an integrative developmental perspective on the construction of the Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Assessing the Personality Psychopathology Five (PSY-5) in adolescents: New MMPI–A Scales.

The Personality Psychopathology Five (PSY-5; A. R. Harkness & J. L. McNulty, 1994) is a dimensional model of personality. Scales to measure the PSY-5 in adolescents were constructed from Minnesota Multiphasic Personality Inventory—Adolescents (MMPI–A) items. From the MMPI-2-based PSY-5 scales (A. R. Harkness, J. L. McNulty, & Y. S. Ben-Porath, 1995), 104 items are found in the MMPI–A booklet. Replicated rational selection (A. R. Harkness, J. L. McNulty, & Y. S. Ben-Porath, 1994) was used to identify additional items from questions unique to the MMPI–A. Preliminary scales were refined with internal psychometric analyses using the MMPI–A normative (N?=?1,620; J. N. Butcher, C. L. Williams, J. R. Graham, R. P. Archer, A. Tellegen, Y. S. Ben-Porath, & B. Kaemmer, 1992) and clinical (N?=?713; C. L. Williams & J. N. Butcher, 1989) samples. The median coefficient alpha for the 5 scales was .76 in both samples; the mean absolute scale intercorrelation was .32 in the normative sample and .30 in the clinical sample. Correlations with collateral data supported the construct validity of the scales. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Understanding the role of impulsivity and externalizing psychopathology in alcohol abuse: Application of the UPPS Impulsive Behavior Scale.

The present study explores the relation among 4 personality traits associated with impulsive behavior and alcohol abuse. Personality traits were measured using the 4 subscales of the UPPS Impulsive Behavior Scale (UPPS: S. P. Whiteside & D. R. Lynam. 2001). The UPPS and measures of psychopathology were administered to clinical samples of alcohol abusers high in antisocial personality traits (AAPD), alcohol abusers low in antisocial personality traits (AA), and a control group (total N = 60). Separate analyses of variance indicated that AAPDs had significant elevations on all 4 UPPS scales, whereas the AAs and controls differed only on the Urgency subscale. However, when controlling for psychopathology, group differences on the UPPS scales disappeared. The results suggest that personality traits related to impulsive behavior are not directly related to alcohol abuse but rather are associated with the elevated levels of psychopathology found in a subtype of alcohol abusers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Personality and vocational interests: The relation of Holland's six interest dimensions to five robust dimensions of personality.

Relations between interest-based personality dimensions from J. L. Holland's (1985) theory of vocational personalities and 5 robust factors of personality (R. R. McCrae and O. P. John; see record 1993-01496-001) were examined. Results for 479 male and 246 female US Navy trainees imply that the 6 theoretical scales of the Vocational Preference Inventory and 20 scales of the NEO Personality Inventory share 2–4 significant factors. Social and Enterprising vocational preferences were positively correlated with Extraversion; Investigative and Artistic preferences were positively correlated with Openness; and Conventional preferences were correlated with Conscientiousness. Examinations of correlations for instruments with scales that are assumed to represent facets of 5 general personality factors usually supported these interpretations. Despite their regularity, the vocational–personality correlations were too low to suggest that either form of assessment is a dependable substitute for the other. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Proactive Personality Scale and objective job performance among real estate agents.

A sample of 131 real estate agents was used to examine the criterion validity of the Proactive Personality Scale (T. S. Bateman & J. M. Crant, 1993). A job performance index was computed for each agent from archival records of the number of houses sold, number of listings obtained, and commission income over a 9-month period. Experience, social desirability, general mental ability, and 2 of the Big Five factors—Conscientiousness and Extraversion—were controlled for, and the Proactive Personality Scale explained an additional 8% of the variance in the objective measure of agents' job performance. These results provide additional evidence for the criterion validity of the Proactive Personality Scale and suggest that specific personality measures can have incremental validity over the Big Five factors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Externalizing behavior and the higher order factors of the Big Five.

The comorbidity of various externalizing behaviors stems from a broad predisposition that is strongly genetically determined (R. F. Krueger, B. M. Hicks, C. J. Patrick, S. R. Carlson, W. G. Iacono, & M. McGue, 2002). This finding raises the question of how externalizing behavior is related to broad personality traits that have been identified in normal populations and that also have a genetic component. Using structural equation modeling, the authors applied a hierarchical personality model based on the Big Five and their two higher order factors, Stability (Neuroticism reversed, Agreeableness, and Conscientiousness) and Plasticity (Extraversion and Openness). Cognitive ability was included to separate variance in Openness associated with Extraversion (hypothesized to be positively related to externalizing behavior) from variance in Openness associated with cognitive ability (negatively related to externalizing behavior). This model was used to predict a latent externalizing behavior variable in an adolescent male sample (N = 140) assessed through self- and teacher reports. As hypothesized, externalizing behavior was characterized by low Stability, high Plasticity, and low cognitive ability. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An item response theory analysis of self-report measures of adult attachment.

Self-report measures of adult attachment are typically scored in ways (e.g., averaging or summing items) that can lead to erroneous inferences about important theoretical issues, such as the degree of continuity in attachment security and the differential stability of insecure attachment patterns. To determine whether existing attachment scales suffer from scaling problems, the authors conducted an item response theory (IRT) analysis of 4 commonly used self-report inventories: Experiences in Close Relationships scales (K. A. Brennan, C. L. Clark, & P. R. Shaver, 1998), Adult Attachment Scales (N. L. Collins & S. J. Read, 1990), Relationship Styles Questionnaire (D. W. Griffin & K. Bartholomew, 1994) and J. Simpson's (1990) attachment scales. Data from 1,085 individuals were analyzed using F. Samejima's (1969) graded response model. The authors' findings indicate that commonly used attachment scales can be improved in a number of important ways. Accordingly, the authors show how IRT techniques can be used to develop new attachment scales with desirable psychometric properties. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Analyzing Psychopathology Items: A Case for Nonparametric Item Response Theory Modeling.

The authors discuss the applicability of nonparametric item response theory (IRT) models to the construction and psychometric analysis of personality and psychopathology scales, and they contrast these models with parametric IRT models. They describe the fit of nonparametric IRT to the Depression content scale of the Minnesota Multiphasic Personality Inventory-2 (J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989). They also show how nonparametric IRT models can easily be applied and how misleading results from parametric IRT models can be avoided. They recommend the use of nonparametric IRT modeling prior to using parametric logistic models when investigating personality data. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Normal personality assessment in clinical practice: The NEO Personality Inventory.

Personality psychologists from a variety of theoretical perspectives have recently concluded that personality traits can be summarized in terms of a 5-factor model. This article describes the NEO Personality Inventory (NEO–PI), a measure of these 5 factors and some of the traits that define them, and its use in clinical practice. Recent studies suggest that NEO–PI scales are reliable and valid in clinical samples as in normal samples. The use of self-report personality measures in clinical samples is discussed, and data from 117 "normal" adult men and women are presented to show links between the NEO–PI scales and psychopathology as measured by D. N. Jackson's (1989) Basic Personality Inventory and L. Morey's (1991) Personality Assessment Inventory. The authors argue that the NEO–PI may be useful to clinicians in understanding the patient, formulating a diagnosis, establishing rapport, developing insight, anticipating the course of therapy, and selecting the optimal form of treatment for the patient. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Externalizing and Internalizing Subtypes of Combat-Related PTSD: A Replication and Extension Using the PSY-5 Scales.

This study replicated and extended prior findings of internalizing and externalizing subtypes of posttraumatic response (M. W. Miller, J. L. Greif, & A. A. Smith, 2003). Cluster analyses of the Minnesota Multiphasic Personality Inventory-2 Personality Psychopathology-Five (MMPI-2 PSY-5; A. R. Harkness, J. L. McNulty, Y. S. Ben-Porath, 1995) profiles obtained from 736 veterans with posttraumatic stress disorder (PTSD) partitioned the sample into a low pathology cluster defined by personality scores in the normal range, an externalizing cluster characterized by low constraint and high negative emotionality, and an internalizing cluster with high negative emotionality and low positive emotionality. Externalizers showed the highest rates of alcohol-related and antisocial personality disorders; internalizers, the highest rates of panic and major depressive disorder. These findings support the development of a personality-based typology of posttraumatic response designed to account for heterogeneity in the expression of PTSD and associated psychopathology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stability of personality self-ratings over 30 years: Evidence for an age/cohort interaction.

Investigated the hypothesis of B. S. Bloom (1964) and others that the stability of personality is greater among older than younger adults. In a longitudinal study, 459 men in 2 cohorts were followed from 1947 to 1977. Self-ratings were obtained over the 30-yr period on 15 item-factor scales from the Minnesota Multiphasic Personality Inventory (MMPI) and on 2 higher order factors. There was substantial evidence of greater stability on many traits in the older than in the younger age/cohort group. Furthermore, in late adulthood, traits related to the higher order factor Constraint were more stable than were traits related to Positive vs Negative Affectivity. (16 ref) (PsycINFO Database Record (c) 2011 APA, all rights reserved)