Allan R. Harkness

Structures of personality and their relevance to psychopathology

Trait concepts are used extensively in psychopathology research, but much of this research has failed to consider recent advances in the dimensional structure of personality. Many investigators have discounted the importance of this structural research, arguing that (a) little progress has been made in this area, (b) structural models have little direct relevance for psychopathology research, and (c) the principal methodological tool of structural research--factor analysis--is too subjective to yield psychologically meaningful results. We dispute each of these objections. Specifically, we offer an integrative hierarchical model--composed of four higher order traits--that is congruent with each of the major structural subtraditions within personality. We also discuss the implications of this integrative scheme for basic trait research, for the conceptualization and assessment of psychopathology, and for the etiology of disorder.

Personal Involvement and Strategies for Making Contingency Judgments: A Stake in the Dating Game Makes a Difference

To examine the relation between degree of involvement in a task and the complexity of strategy a subject applies to the task, we randomly assigned 48 female university volunteers to either a dating condition (high-involvement) or one of two (low-involvement) control conditions. These subjects performed a covariation judgment task for which the likelihood of their using simple or complex strategies was calculated. High-involvement subjects used more complex strategies and tended to be more accurate. These data are discussed in terms of the functionality of human information processing, heuristic analyses of inference strategies, and the importance of considering level of personal involvement in analyses of task performance.

The Personality Psychopathology-Five (PSY-5): Recent Constructive Replication and Assessment Literature Review.

The Personality Psychopathology-Five (PSY-5; Harkness & McNulty, 1994) is a model of individual differences relevant to adaptive functioning in both clinical and non-clinical populations. In this article, we review the development of the PSY-5 model (Harkness, 1992; Harkness & McNulty, 1994) and discuss the ways in which the PSY-5 model is related to and distinct from other 5-factor models. Using different methods and measures, the dimensions of the PSY-5 model have been constructively replicated (Lykken, 1968) by Tackett, Silberschmidt, Krueger, and Sponheim (2008) and by Watson, Clark, and Chmielewski (2008), and dimensions congruent with the PSY-5 have even been suggested for the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; Krueger et al., 2011). PSY-5 Scales can be scored from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; Butcher et al., 2001), the MMPI-Adolescent version (MMPI-A; Butcher et al., 1992), and the Restructured Form of the MMPI-2 (MMPI-2-RF; Ben-Porath & Tellegen, 2008). Because the largest body of research exists for the MMPI-2-based scales, we focus our review of the literature on the MMPI-2-based PSY-5 scales (Harkness, McNulty, & Ben-Porath, 1995), but we briefly cover the small, but growing, body of MMPI-A and MMPI-2-RF PSY-5 scales research. We show that the PSY-5 research literature includes a wide variety of psychometric methodologies as well as diverse samples and clinical problems. An integrative summary reprises the theory behind each PSY-5 construct and links it to the reviewed literature. Advantages and limitations of MMPI-2-based PSY-5 scales are discussed.

A Review of Systems for Psychology and Psychiatry: Adaptive Systems, Personality Psychopathology Five (PSY–5), and the DSM–5

We outline a crisis in clinical description, in which atheoretical categorical descriptors, as in the Diagnostic and Statistical Manual of Mental Disorders (DSM), has turned focus away from the obvious: evolved major adaptive systems. Adaptive systems, at the core of a medical review of systems (ROS), allow models of pathology to be layered over an understanding of systems as they normally function. We argue that clinical psychology and psychiatry would develop more programmatically by incorporating 5 systems evolved for adaptation to the external environment: reality modeling for action, short-term danger detection, long-term cost–benefit projection, resource acquisition, and agenda protection. These systems, although not exhaustive, coincide with great historical issues in psychology, psychopathology, and individual differences. Readers of this journal should be interested in this approach because personality is seen as a relatively stable property of these systems. Thus, an essential starting point in ROS-based clinical description involves personality assessment. But this approach also places demands on scientist-practitioners to integrate across sciences. An ROS promotes theories that are (a) compositional, answering the question: What elements comprise the system?; (b) dynamic, answering: How do the elements and other systems interact?; and (c) developmental: How do systems change over time? The proposed ROS corresponds well with the National Institute of Mental Healths recent research domain criteria (RDoC) approach. We urge that in the RDoC approach, measurement variables should be treated as falsifiable and theory-laden markers, not unfalsifiable criteria. We argue that our proposed ROS promotes integration across sciences, rather than fostering the isolation of sciences allowed by atheoretical observation terms, as in the DSM.

An adaptational view of trauma response as illustrated by the prisoner of war experience

We propose a model of Post-Traumatic Stress Disorder (PTSD) symptoms in which they have positive evolutionary adaptational value in traumatic environments. The persistence of PTSD symptoms following return to more benign environments may result from biological changes within the organism, reflected by a primary response of increased levels of underlying traits such as Negative Affectivity. Secondary symptoms such as social withdrawal and substance abuse are conceptualized as subsequent coping with the primary trauma response. This model was tested using data on 413 former World War II Prisoners of War (POWs). The results were consistent with the model, indicating an enduring high level of Negative Affectivity as measured by scales on the MMPI. Capitivity severity scores, developed using a factor analysis of POW experience variables, were related to lifetime and current diagnoses of PTSD, generalized anxiety disorder, and major or minor depression. They were not related to schizophrenia, alcohol abuse/dependence, bipolar I and II disorders, or organic mental disorders. Elevated Negative Affectivity indicators were proportional to the captivity severity scores.

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.

Structural models of captivity trauma, resilience, and trauma response among former prisoners of war 20 to 40 years after release

SummaryLong-term responses to captivity trauma were measured in a national sample of American former prisoners of war. Their responses included negative affect, positive affect, and somatic symptoms as assessed by the Cornell Medical Index in 1967 and the Center for Epidemiological Study Depression Scale in 1985. These responses were strongly associated with captivity trauma (as indexed by captivity weight loss, torture, and disease) and resilience (as indexed by age and education at capture). Symptoms reported in 1967 were related to symptoms reported in 1985, suggesting symptom stability. These results are consistent with a model of trauma response that incorporates both trauma exposure and individual resilience. The findings are interpreted within a theoretical view of trauma response as adaptive when viewed from an evolutionary perspective.

The MMPI–2–RF Personality Psychopathology Five (PSY–5–RF) Scales: Development and Validity Research

This article describes the development, internal psychometric, and external validation studies on scales designed to measure the Personality Psychopathology Five (PSY–5) from MMPI–2 Restructured Form (MMPI–2–RF) items. Diverse and comprehensive data sets, representing various clinical and nonclinical populations, were classified into development and validation research samples. Item selection, retention, and exclusion procedures are detailed. The final set of PSY–5–RF scales contain 104 items, with no item overlap between scales (same as the original MMPI–2 PSY–5 scales), and no item overlap with the Demoralization scale. Internal consistency estimates are comparable to the longer MMPI–2 PSY–5 scales. Appropriate convergent and discriminant validity findings utilizing various self-report, collateral rating, and record review data are reported and discussed. A particular emphasis is offered for the unique aspects of the PSY–5 model: psychoticism and disconstraint. The findings are connected to the broader PSY–5 literature and the recommended review of systems (Harkness, Reynolds, & Lilienfeld, this issue) presented in this series of articles.

Serotonin transporter gene (5-HTTLPR) polymorphisms are associated with emotional modulation of pain but not emotional modulation of spinal nociception.

The short allele of the serotonin transporter gene (5-HTTLPR) is associated with greater negative emotionality. Given that emotion modulates pain, short allele carriers (s-carriers) may also demonstrate altered pain modulation. The present study used a well-validated emotional picture-viewing paradigm to modulate pain and the nociceptive flexion reflex (NFR, a measure of spinal nociception) in 144 healthy genotyped participants. As expected, pain/NFR responses were largest during unpleasant pictures and smallest during pleasant pictures. However, relative to l/l-carriers, s-carriers demonstrated greater pain inhibition during pleasant pictures and greater pain facilitation during unpleasant pictures. Neither emotional modulation of NFR nor NFR threshold was associated with 5-HTTLPR polymorphisms. Results also indicated that men who were s-carriers had a higher pain threshold and tolerance than other participants. Taken together, our results indicate 5-HTTLPR polymorphisms may influence pain modulation at the supraspinal (not spinal) level; however, the influence on pain sensitivity may be sex-specific.

Science should drive the bus of clinical description; but how does "science take the wheel"?: a commentary on Markon.

In our view, Kristian Markon is right: Science should drive the bus. The central argument of Markon’s scholarly, closely reasoned, timely, and much needed article is that clinical description should be built bottom-up from sound science, not constructed top-down by authority. We absolutely agree with him that science should drive the bus, not just be a slogan on the side of the bus. We also agree with him on why science should drive the bus: Real science offers “competitive epistemological pluralism” (Markon, 2013).