Association of the MMPI-2 Restructured Form (MMPI-2-RF) Validity Scales with Structured Malingering Criteria

The current study examined the validity scales of the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF; Ben-Porath and Tellegen 2008) in relation to the structured malingering criteria developed to assess malingered neurocognitive dysfunction and pain-related disability. These criteria examined a sample of 251 individuals undergoing compensation-seeking evaluations, who completed a battery of response bias measures. The MMPI-2-RF over-reporting scales yielded large effect sizes in contrasting those in the probable/definite malingering groups from the incentive only groups. The largest effects were found for the Infrequent Responses and Gervais et al. (Assessment, 14, 196–208, 2007) Response Bias Scale, an experimental scale that can be scored on the MMPI-2-RF. Classification analyses were also utilized to examine various cut scores for the individual validity scales, as well as their use in combination. These results suggest that the MMPI-2-RF validity scales can be used to screen for malingering, as they exhibited good sensitivity at lower cutoffs. The implications of these results and their use in forensic evaluations are discussed.     

A Meta-Analytic Review of Minnesota Multiphasic Personality Inventory—2nd Edition (MMPI-2) Profile Elevations Following Traumatic Brain Injury

Psychologists often use the Minnesota Multiphasic Personality Inventory (MMPI) and, more recently, its successor, the MMPI-2, to assess personality and psychological disturbances following traumatic brain injury (TBI). The present meta-analysis examined the pattern of mean Hedges’ d values on MMPI-2 validity (L, F, K) and clinical (1–4, 6–0) scales in individuals with TBI. Database keyword searches yielded ten studies providing post-TBI MMPI-2 profiles. Studies were required to include a pure TBI sample, individuals who were ≥18 at injury, and means and standard deviations for most MMPI-2 clinical scales. Analyses showed large effects for MMPI-2 scales F, 1, 2, 3, 7, and 8. Using Q statistics, moderating effects were found for TBI severity on scale 7 and for compensation-seeking/litigation status on scales 1, 2, 3, and 7. No significant effects were found for time post-injury. The available information was insufficient to examine the effect of lesion location, pre-injury personality and psychopathology, or time post-injury for samples with differing injury severities on MMPI-2 profiles. Results suggest that individuals with TBI report significant levels of psychopathology that may be moderated by TBI severity and compensation-seeking/litigation status. Discussion includes a literature critique given the meta-analytic findings and implications for future study of personality following TBI.     

Associations between MMPI-2-RF (Restructured Form) and Inwald Personality Inventory (IPI) Scale Scores in a Law Enforcement Preemployment Screening Sample

The MMPI-2 is widely used in assessments of police officer candidates. The MMPI-2-RF, composed of 338 of the 567 MMPI-2 items, is designed to measure the core clinical constructs assessed by the MMPI-2, but in a more psychometrically sound and efficient manner (Ben-Porath and Tellegen 2008/2011). Law enforcement comparison group data are embedded in the scoring software for the inventory, and reported in the User’s Guide for the MMPI-2-RF Police Candidate Interpretive Report (PCIR; Corey and Ben-Porath 2014). In the present concurrent validity study, conceptually based hypotheses regarding associations between MMPI-2-RF scales and scores on the Inwald Personality Inventory (IPI, Inwald et al. 1982; Hilson Research 2006), a test specifically designed to screen law enforcement officers, were tested with a sample of 277 male, full-time police officer candidates from four separate police departments of varying sizes examined after a conditional offer of employment was tendered. The majority of participants were Caucasian (69%), followed by African-American (27%), or Other/Mixed ethnicity (4%). Our hypotheses were largely borne out, lending support to the construct validity of the MMPI-2-RF and the ability of scores on the inventory to assess variables relevant to police candidate evaluations.     

Incremental validity of MMPI and MMPI-2 clinical scales in detecting malingering

The efficacy of the F scale and F-K index in detecting faking of a mental illness was investigated for both the MMPI and MMPI-2. A total of 72 undergraduate students completed the MMPI and 74 completed the MMPI-2 after receiving instructions to feign severe mental illness. Student responses were analyzed against MMPI (n=180) and MMPI-2 (n=76) data obtained from psychiatric inpatients diagnosed with severe mental illnesses. Multiple regression analysis of the validity scales and F-K index indicate that the F scale is the best predictor of malingering both for the MMPI (r=64) and MMPI-2 (r=.74) and the two samples combined (r=.71). The Si and D scales accounted for statistically significant, yet small, amounts of incremental validity. The presence of a “sawtooth” pattern did not add any incremental validity. Though an F scale cut-off score of T>109 resulted in an 85.9% classification accuracy rate, it appears that categorizing scores into one of five ranges results in better classification accuracy than a single cut-off score.     

MMPI-2 and MMPI-2-Restructured Form Validity Scales: Complementary Approaches to Evaluate Response Validity

Responsible forensic assessment is dependent on an appreciation for how validity scales differ from one another and function across different evaluation contexts. The primary goal of this review is to evaluate whether there is sufficient empirical support to provide expert testimony using MMPI-2 or MMPI-2-RF validity scales. Towards this goal, we briefly describe the development of MMPI-2 and MMPI-2-RF validity scales and review empirical studies that support interpretative strategies. We describe and illustrate with case examples how the respective sets of MMPI-2 and MMPI-2-RF validity scales utilize complementary strategies to detect over- and under-reporting of psychological, cognitive, and physical symptoms. Additionally, the review describes standards for expert psychological testimony and illustrates how MMPI-2 and MMPI-2-RF validity scales are particularly well suited to assess symptom validity and psychological status in secondary-gain settings.     

Use of the MMPI-2 Restructured Clinical (RC) Scales in Detecting Criminal Malingering

The purpose of the present study was to assess the effects of criminal malingering on the MMPI-2 Restructured Clinical (RC) scales. Sixty undergraduate students were given the MMPI-2 twice. One administration was conducted according to the MMPI-2 manual, and the other was given with a special set of malingering instructions specific to a prison setting. The two MMPI-2 profiles for each participant were scored for both the Basic and RC scales. Eight participants were eliminated from the data analysis due to validity (VRIN or TRIN) concerns. Data from the remaining 52 participants were analyzed using a 2 × 2 repeated measures ANOVA. Results showed that, as expected, the participants achieved higher MMPI-2 scores in the malingering condition. Also, participants achieved higher scores overall on the Basic scales and a significant interaction showed that participants achieved higher scores on the Basic Scales in the malingering condition than on the RC scales in that condition. These results supported prior research, indicating that malingerers produce elevated RC profiles. However, the present results also suggest that the Basic scales may be more effective in actually detecting malingerers, mainly due to the much lower ceiling on the RC scaled scores. Further implications of these findings for research and clinical work are also discussed.     

A study of the interrelationships of several validity scales used in police selection

Validity scale data have received attention recently as providing valuable information about potential problematic police officer candidates. In this study, validity scale data from a number of selection instruments were obtained using 42 state police officer candidates. The scale used were the MMPI-2 L scale, the MMPI-2 K scale, the PAI Positive Impression Scale (PIM), the PAI Defensiveness Index (DI), the IPI Guardedness scale, the Hilson Life Adjustment Profile Lack of Candor scale, and the Inwald Survey 2 Denial of Shortcomings scale. Intercorrelations among the scales were developed and a factor analysis was performed. Factor analysis revealed two factors to be present. One is associated with the Hilson scales and is appropriately named guardedness or defensiveness. The other is associated with the MMPI-2 K scale and the PAI scales and is appropriately named social desirability. The MMPI-2 L scale loaded significantly on both factors and seemed to be the most general of the validity scales in terms of its characteristics. Implications of these analyses for police selection are discussed.     

Examining the use of the M-FAST with criminal defendants incompetent to stand trial

The Miller Forensic Assessment of Symptoms Test (M-FAST) was developed to provide evaluators with a brief, reliable, and valid screen for malingered mental illness. This study examined the initial validity of the M-FAST in a sample of 50 criminal defendants found incompetent to stand trial because of a mental illness. The M-FAST total score and items were compared with the Structured Interview of Reported Symptoms (SIRS) and the fake-bad indicators of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2). Results indicated good evidence of construct and criterion validity, demonstrated by t tests, receiver operating characteristics analysis, and high correlations between the M-FAST, SIRS, and the fake-bad indices on the MMPI-2. Tentative cut scores for the M-FAST total score and scales were examined and demonstrated high utility with the sample of criminal defendants incompetent to stand trial.     

Use of the MMPI-2 in the treatment of offenders

The MMPI-2 is among the most frequently relied upon inventories for personality assessment. The test is utilized across a variety of nonforensic settings (e.g., psychiatric inpatient and outpatient) as an aid in formulating treatment plans, assessing treatment progress, and measuring treatment outcome. The MMPI-2 can also be utilized in forensic settings in a manner similar to its use in other settings, such as identifying treatment goals and evaluating treatment efficacy. Various MMPI-2 scales can identify an individual's treatment needs, reveal potential obstacles to treatment, and serve as a measure of treatment efficacy. Such information can be very helpful to the clinician in formulating or modifying a course of treatment for offenders. This article provides an overview of the use of the MMPI-2 in treatment planning and describes the relation between scores on the validity, clinical, and various supplementary scales and treatment-related issues.     

The Minnesota Multiphasic Personality Inventory-2 Restructured Form and Posttraumatic Stress Disorder: Forensic Applications and Considerations

This paper reviews the empirical literature on the use of the Minnesota Multiphasic Personality Inventory-2 Restructured Form (RF; Ben-Porath and Tellegen 2008; Tellegen and Ben-Porath, 2008) scales for the assessment of posttraumatic stress disorder (PTSD) and PTSD comorbidity and discusses the use of the instrument in forensic contexts. We focus on prior work that has examined the association between the RF scales and PTSD, PTSD comorbidity, and the utility of the RF validity scales for detecting feigned symptoms of PTSD. We conclude that though the MMPI-2 RF scales show expected patterns of association with PTSD, their most useful application in the forensic arena may be in the identification of comorbid personality-based psychopathology, and in detecting symptom overreporting. We recommend that the MMPI-2 RF be used in the context of a comprehensive assessment that includes an exhaustive record review, detailed history with an emphasis on past trauma, and structured diagnostic interviews.     

The More You Say the Less It Means: Overreporting and Attenuated Criterion Validity in a Forensic Disability Sample

A recent publication in Psychological Bulletin by McGrath et al. (Psychological Bulletin 136:450–470, 2010) challenged the necessity of response bias indicators in applied psychological assessment on the grounds that there is insufficient empirical support that shows that they are able to moderate the prediction of substantive measures. The current study challenges their conclusions by examining the effects of response bias in a sample of 2,275 disability litigants. We utilized the validity scales of the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF; Ben-Porath and Tellegen, 2008) in order to establish a group of litigants who did not exhibit evidence of overreporting and compared them to a group of overreporting litigants. The overreporting group scored significantly higher on every Restructured Clinical Scale. Moreover, we compared the criterion validity between various substantive scales on the MMPI-2-RF and extratest measures [e.g., Beck Depression Inventory-II (Beck, Steer, & Brown, 1996)] and found evidence of significantly attenuated criterion validity in the overreporting group. Implications of the study in light of the review by McGrath and colleagues are discussed.     

Internal reliability and construct validity of the Novaco Anger Scale-1998-S in a sample of violent prison inmates in Sweden

Abstract

In this study, the internal reliability and construct validity of the recently adapted Swedish version of the Novaco Anger Scale (NAS-1998-S; Lindqvist, Dåderman, & Hellström, Social Behavior and Personality, 8, 773–788, 2003), as well as its scale correlations with demographic and criminality variables, were investigated. Construct validity was established by assessing the correlation pattern of the scales of NAS-1998-S with concurrent scales of similar and distinct constructs. Ninety-five male violent prisoners, ranging in age from 18 to 67 years, participated. The results demonstrated good internal reliability, consistent intrascale relationships, and appropriate construct validity of NAS-1998-S. The number of previous convictions had a moderate negative relationship with the capacity of control. Age and education correlated negatively with the NAS-1998-S scales, except Regulation. In addition to psychometric issues, the results were discussed from a clinical perspective on the offender population.     

A brief measure of the triarchic model of psychopathy among community youths: psychometrics and measurement invariance

ABSTRACT

The development and validation of empirically sound measures that operationalize the Triarchic model of psychopathy among youth is currently in the nascent stage. The present study aimed to examine the psychometric properties of a brief refined measure of the Triarchic model of psychopathy based on the Youth Psychopathic Traits Inventory (YPI-Tri-S) among a mixed-gender school sample of 782 youth (M?=?15.87 years, SD?=?1.72) from Portugal. Confirmatory factor analysis offered support for the theoretically expected three-factor structure. Cross-gender measurement invariance using the present sample and cross-sample measurement invariance of the YPI-Tri-S using a previously collected forensic sample of institutionalized males was established. The YPI-Tri-S showed adequate psychometric properties in terms of discriminant validity, convergent validity, concurrent criterion-related validity, known-groups validity, and internal consistency. Findings indicate that YPI-Tri-S is a valuable brief and psychometrically reliable and valid self-report measure of the Triarchic model of psychopathy for use in diverse samples of youth.     

The use of the Psychological Inventory of Criminal Thinking Styles with English young offenders

Objectives. This study examines the psychometric properties of the Psychological Inventory of Criminal Thinking Styles (PICTS) with a sample of imprisoned English young offenders. Method. The reliability and validity of the PICTS scales were investigated, and changes in scores on the PICTS scales over a 6‐month period were analysed. Results. The findings suggested that from a psychometric perspective the PICTS scales were not performing as well with young offenders as with adult prisoner samples. The indices of reliability and validity were of a moderate level. Test‐retest scores calculated over the 6 months showed little change on the PICTS scores. Conclusion. The use of the PICTS scales with young offenders is discussed with reference to previous research with adult offenders in England and North America.     

MMPI-2 and 16PF-5 Personality Traits of Parents Involved in Personality Assessment

The present study focused on both the MMPI-2 scales and the 16PF-5 primary and global factors, involving 213 individuals who were court-ordered to undergo a personality assessment in neglect and/or abuse cases. Results showed a defensive approach to the assessment and specific psychological characteristics indicated by moderate range elevations in the MMPI-2 clinical scales 4 and 6 and in the 16PF-5 Tough-Mindedness, and high scores of 16PF-5 Self-Control associated with low scores of PSY-5 Disconstraint. Finally, this study revealed strong associations between MMPI-2 PSY-5 and 16PF-5 global factors, offering a detailed picture of psychological functioning.     

The MMPI-2 and statisfactory police academy performance: Differences and correlations

The Minnesota Multiphasic Personality Inventory (MMPI) and its later revision (MMPI-2) have been the most frequently employed psychological instrument in the selection of law enforcement officers (Bartol, 1996). In this study, state police trooper cadets were given a broad number of measures including the MMPI-2 prior to academy admission. Their performance at the police academy was then analyzed and related to their performance on the MMPI-2. Using step-wise multiple linear regression. Hy3 and Sc4 scores produced significant negative correlation’s with academy final grade point average. Student’s unpaired 1-tests between successful and unsuccessful cadets revealed differences between the groups for several MMPI-2 subscales including, but not limited to, K, MA, and SI, Lastly, logistic regression revealed no single subscale, or combination of subscales, which significantly predicted classification of the cadets as either successful or unsuccessful based on their MMPI-2 scores alone. Author Note: Elements of this article have been presented at the 27^th Annual Conference of the Society of Police and Criminal Psychology in Portland, OR, October 1998.     

Detection of Malingered ADHD Using the MMPI-2-RF

This study examined the utility of the Minnesota Multiphasic Personality Inventory—2 Restructured Form (MMPI-2-RF) validity scales for detecting feigning and exaggeration of attention-deficit/hyperactive disorder (ADHD) among college students. Under a simulation study design, participants with and without ADHD were assigned to perform honestly or to feign or exaggerate deficits related to ADHD while completing self-report symptom inventories. Participants instructed to feign produced symptom profiles similar to honest clinical profiles and more severe than honest nonclinical profiles. Participants with ADHD instructed to exaggerate produced less severe profiles than those instructed to feign and more severe profiles than clinical controls. MMPI-2-RF scale Fp-r showed potential for use in malingered ADHD detection at a revised cut score, which was significantly lower than the cut score suggested in the test manual; use of the revised cut score will require further validation. Scales F-r, Fs, and FBS-r did not classify well, but should be assessed in future studies of malingered ADHD. Detection of exaggeration was consistently poorer than detection of feigning.     

Potential for Bias in MMPI-2 Assessments Using the Fake Bad Scale (FBS)

The Fake Bad Scale (FBS), developed to identify malingering of emotional distress among claimants seeking compensation for personal injuries, was recently added to the MMPI-2 scoring materials, resulting in its widespread dissemination across the various clinical settings that use the MMPI-2 in psychological evaluations. We examine: (1) questions of item bias in the FBS; (2) how malingering and nonmalingering groups are identified in FBS studies, including whether the research has been broadly inclusive and fully represents the populations assessed by the MMPI-2; (3) the reliability and validity of the FBS; (4) the highly variable recommendations for raw score cut-offs and how they relate to T scores; (5) two inpatient groups [men in a tertiary care Veterans Affairs Healthcare System (VA) unit and women in an eating disorders program] who may be inappropriately labeled as malingering by the FBS; (6) the publisher’s statement on use of the FBS; and (7) a Frye hearing in Florida where the FBS was excluded from expert testimony, one of three so far. We raise questions about its potential bias against people with disabilities and physical illnesses, women, individuals exposed to highly traumatic situations, and those motivated to present themselves in a favorable light. Psychologists using the FBS for making decisions about clients’ motivations need to be aware of the serious problems with the scale’s use and the cases of its inadmissibility in court.     

Predicting aggression in police officers using the MMPI-2

This study attempted to determine if any of four MMPI-2 scales formulated to measure various forms of hostility or aggression is useful in predicting aggressive behavior among police officers. In our analysis of 80 officers from two police departments, we found that some scales predicted supervisor ratings of officer performance in one of the departments but not in the second department. In one department, officers with higher ANG scores or HOS scores, or lower O-H scores, were judged by supervisors to be more assertive. Officers from the same department with higher HO scores or lower O-H scores received moire justified citizen complaints. We discuss the importance of predicting aggression in police officers, the difficulty of making this prediction using MMPI-2 scores, and differences between the two departments that might have impacted the outcome of this research. Authors' Note: Communications should be addressed to the authors at James Madison University, School of Psychology, MSC 7401, Harrisonburg VA 22807.