Minnesota Multiphasic Personality Inventory Scales Research Articles

Mortality Predictors in a 60-Year Follow-Up of Adolescent Males: Exploring Delinquency, Socioeconomic Status, IQ, High-School Drop-Out Status,and Personality

To examine whether socioeconomic status (SES), high school (HS) completion, IQ, and personality traits that predict delinquency in adolescence also could explain men's delinquency-related (Dq-r) mortality risk across the life span. Through a 60-year Social Security Death Index (SSDI) follow-up of 1812 men from Hathaway's adolescent normative Minnesota Multiphasic Personality Inventory (MMPI) sample, we examined mortality risk at various ages and at various levels of prior delinquency severity. We examined SES (using family rent level), HS completion, IQ, and MMPI indicators simultaneously as mortality predictors and tested for SES (rent level) interactions with IQ and personality. We ascertained 418 decedents. Dq-r mortality peaked between ages 45 years to 64 years and continued through age 75 years, with high delinquency severity showing earlier and higher mortality risk. IQ and rent level failed to explain Dq-r mortality. HS completion robustly conferred mortality protection through ages 55 years and 75 years, explained IQ and rent level-related risk, but did not fully explain Dq-r risk. Dq-r MMPI scales, Psychopathic Deviate, and Social Introversion, respectively, predicted risk for and protection from mortality by age 75 years, explaining mortality risk otherwise attributable to delinquency. Wiggins' scales also explained Dq-r mortality risk, as Authority Conflict conferred risk for and Social Maladjustment and Hypomania conferred protection from mortality by age 75 years. HS completion robustly predicts mortality by ages 55 years and 75 years. Dq-r personality traits predict mortality by age 75 years, accounting, in part, for Dq-r mortality.

Exploring Relationships of Psychopathology in Hypersexual Patients Using the MMPI-2

This article reports the findings of a study investigating relationships among Minnesota Multiphasic Personality Inventory-2 (MMPI-2) scales as they pertain to a group of individuals seeking help for hypersexual behavior (N = 152). A number of MMPI-2 scale elevations were prevalent with this group, suggesting that some of these patients experience symptoms associated with psychopathology and interference or impairment in important areas of personal and interpersonal functioning. We failed to find any evidence in our data supporting the notion that hypersexual patients experience addictive tendencies. For a significant portion of the group, however, there were few-to-minimal elevations, reflecting normal psychological profiles. An overall important finding in our data suggests that patients presenting with hypersexual behavior are a diverse group, sufficiently so that studying subsamples of this group may lead to a clearer understanding of this behavior. Models that promote a homogenous conceptualization and treatment of hypersexuality likely miss important differences that provide valuable insight when working with this population.

Personality characteristics of health care satisfaction survey non‐respondents

Patient satisfaction surveys are increasingly used to assess the quality of health care delivery. Unfortunately, survey non-response may compromise generalizability (and inferential value). Although prior studies demonstrate an association between patient socio-demographic variables and response rate, relatively little information is available linking personality factors to non-response. This paper's purpose is to define outpatient satisfaction survey non-responder personality characteristics. Minnesota Multiphasic Personality Inventory profiles of patients who completed an outpatient satisfaction survey were compared with non-responder profiles. Multivariate analysis was used to adjust for demographic and personality covariates. The study sample included 1,862 medical outpatients who were sent a satisfaction survey and Minnesota Multiphasic Personality Inventory results on record at this institution. Of these, 1,255 were survey responders and 607 were non-responders. Scores on three Minnesota Multiphasic Personality Inventory scales were significantly correlated with non-response: higher scores on scales 4--Psychopathic deviate (Pd) and 8--Schizophrenia (Sc) predicted an increased likelihood of non-response (odds ratio [OR], 1.02; p < or = 0.05 for both), and higher scores on 7--sychasthenia (Pt) were associated with a decreased likelihood of non-response (OR, 0.98; p < or = 0.01). Prior investigations demonstrate an association between patient socio-demographic factors and survey non-response. This paper uniquely highlights patient personality characteristics' contribution to non-response. This information is an important consideration for patient satisfaction survey design, administration and interpretation.

Pessimistic, anxious, and depressive personality traits predict all-cause mortality: the Mayo Clinic cohort study of personality and aging.

To study the association between several personality traits and all-cause mortality. We established a historical cohort of 7216 subjects who completed the Minnesota Multiphasic Personality Inventory (MMPI) for research at the Mayo Clinic from 1962 to 1965, and who resided within a 120-mile radius centered in Rochester, MN. A total of 7080 subjects (98.1%) were followed over four decades either actively (via a direct or proxy telephone interview) or passively (via review of medical records or by obtaining their death certificates). We examined the association of pessimistic, anxious, and depressive personality traits (as measured using MMPI scales) with all-cause mortality. A total of 4634 subjects (65.5%) died during follow-up. Pessimistic, anxious, and depressive personality traits were associated with increased all-cause mortality in both men and women. In addition, we observed a linear trend of increasing risk from the first to the fourth quartile for all three scales. Results were similar in additional analyses considering the personality scores as continuous variables, in analyses combining the three personality traits into a composite neuroticism score, and in several sets of sensitivity analyses. These associations remained significant even when personality was measured early in life (ages 20-39 years). Our findings suggest that personality traits related to neuroticism are associated with an increased risk of all-cause mortality even when they are measured early in life.

Neuropsychiatric symptoms of complex posttraumatic stress disorder: A preliminary Minnesota Multiphasic Personality Inventory scale to identify adult survivors of childhood abuse.

Neuropsychiatric symptoms of complex posttraumatic stress disorder: A preliminary Minnesota Multiphasic Personality Inventory scale to identify adult survivors of childhood abuse.

Cognitive Assessment in Complex Regional Pain Syndrome Patients

Background: Complex regional pain syndrome (CRPS) is characterized by severe neuropathic pain and disability, which can result in psychological and behavioral dysfunction. The goal of the present study was to evaluate neurocognitive disability, and to assess the relationship between clinical variables and neuropsychological features in CRPS patients. Methods: We investigated the neuropsychological features of 15 CRPS I patients. The neuropsychological tests that we made comprised of a full intelligence quotient, memory quotient, trail-making test A, trail-making test B (TMT-B), and MMPI (Minnesota multiphasic personality inventory). Results: The results showed severe disability in performance on TMT-B. There was no significant correlation between specific cognitive variables and MMPI scales. Conclusions: Decreased performance on TMT-B which shows mental flexibility in the prefrontal lobe exists independently from depressive disorders in CRPS patients.

Effects of Reward and Punishment on Task Performance, Mood and Autonomic Nervous Function, and the Interaction with Personality

The effects of reward and punishment are different, and there are individual differences in sensitivity to reward and punishment. The purpose of this study was to investigate the effects of reward and punishment on task performance, mood, and autonomic nervous function, along with the interaction with personality. Twenty-one healthy female subjects volunteered for the experiment. The task performance was evaluated by required time and total errors while performing a Wisconsin Card Sorting Test. We assessed their personalities using the Minnesota Multiphasic Personality Inventory (MMPI) questionnaire, and mood states by a profile of mood states. Autonomic nervous function was estimated by a spectral analysis of heart rate variability, baroreflex sensitivity, and blood pressure. Repeated measures analysis of variance (ANOVA) revealed significant interaction of condition x time course on mood and autonomic nervous activity, which would indicate a less stressed state under the rewarding condition, but revealed no significant interaction of condition x time course on the task performance. The interactions with personality were further analyzed by repeated measures ANOVA applying the clinical scales of MMPI as independent variables, and significant interactions of condition x time course x Pt (psychasthenia) on task performance, mood, and blood pressure, were revealed. That is, the high Pt group, whose members tend to be sensitive and prone to worry, showed gradual improvement of task performance under the punishing situation with slight increase in systolic blood pressure, while showed no improvement under the rewarding situation with fatigue sense attenuation. In contrast, the low Pt group, whose members tend to be adaptive and self-confident, showed gradual improvement under the rewarding situation. Therefore, we should carefully choose the strategy of reward or punishment, considering the interaction with personality as well as the context in which it is given.

The utility and comparative incremental validity of the MMPI-2 and Trauma symptom Inventory validity scales in the detection of feigned PTSD.

The authors examined the comparative predictive capacity of the Trauma Symptom Inventory (TSI) Atypical Response Scale (ATR) and the standard set of Minnesota Multiphasic Personality Inventory-2 (MMPI-2) fake-bad validity scales (i.e., F, F-sub(B), F-sub(p), FBS) to detect feigned posttraumatic stress disorder (PTSD). Remitted trauma victims (n = 60) completed the TSI and MMPI-2 under standard (honest) instructions and then were randomly assigned to 1 of 2 experimental conditions (noncoached/validity scale coached) in which they were administered these instruments again with instruction to fake PTSD. These test protocols were compared with TSI and MMPI-2 results from workplace injury claimants with PTSD (n = 84). The ATR and FBS were able to distinguish only the noncoached participants instructed to fake from the PTSD claimants; in contrast, the F, F-sub(B), and F-sub(p) scales were able to distinguish both the noncoached and the validity-scale-coached participants from the PTSD claimants. F, F-sub(B), and F-sub(p) always outperformed the ATR and FBS; neither the ATR nor the FBS was able to add incremental predictive variance to that of F, F-sub(B), or F-sub(p).

Psychological Correlates of Laparoscopic Adjustable Gastric Band and Gastric Bypass Patients

To compare psychological characteristics of patients seeking laparoscopic adjustable gastric band (LAGB) and gastric bypass surgery. In the present study, 898 women were assessed as part of a comprehensive presurgical evaluation. Of these 898 patients, 107 (12%) were seeking LAGB surgery and 791 (88%) were seeking gastric bypass surgery. Their scores on a battery of psychological tests were compared with T-tests with Bonferroni correction. Those patients seeking gastric bypass had greater body mass indices than those seeking LAGB. However, the analyses found no statistically significant differences on measures of IQ, depression, anxiety, anger, self-assessed reasons for weight gain, and psychopathology and personality as indicated by Minnesota Multiphasic Personality Inventory-2 scale scores. The psychological evaluation can be helpful in identifying behavioral and emotional issues that merit adjunct psychological attention to optimize long-term surgical outcome. These results suggest that, as a group, no differential treatment planning needs to take place for psychological issues based on surgery performed.

Incremental Validity of the Minnesota Multiphasic Personality Inventory–2 and Symptom Checklist–90–Revised With Mental Health Inpatients

This study evaluated the incremental validity of scores from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and the Symptom Checklist-90-Revised (SCL-90-R) in a sample of mental health inpatients originally published by Archer, Griffin, and Aiduk (1995). The incremental validity of scores from the SCL-90-R primary symptom dimensions and MMPI-2 Clinical, Content, and Restructured Clinical scales was assessed in a sample of 544 mental health inpatients using conceptually related items from the Brief Psychiatric Rating Scale (BPRS) as criteria. A series of hierarchical multiple regressions indicated that scores from the SCL-90-R primary symptom dimensions exhibited limited incremental validity (Mdn DeltaR(2) = .01, range = 0-.01), whereas scores from MMPI-2 scales contributed additional information in the prediction of ratings on all but one BPRS item (Mdn DeltaR( 2) = .08, range = .04-.12).

MMPI measures as signs of predisposition to mental disorder among adoptees at high risk for schizophrenia

The DSM-III-R diagnoses of a group of adoptees were predicted by the MMPI (Minnesota Multiphasic Personality Inventory) schizophrenia-related scales in the Finnish Adoptive Family Study. The sample consisted of 60 high-risk (HR) adopted-away offspring of biologic mothers with a diagnosis of broad schizophrenia spectrum and 76 low-risk (LR) control adoptees. They were assessed with the MMPI before the onset of any psychiatric disorder at a mean age of 24 years. High scores on the Psychopathic Deviate scale predicted psychiatric disorder at 11-year follow-up. Furthermore, LR adoptees', but not HR adoptees', mental disorders could be predicted with the MMPI scales Psychopathic Deviate and Golden-Meehl Indicators. These scales measure schizophrenia-related personality traits, including asocial behavior, anhedonia, ambivalence, interpersonal aversiveness, and formal thought disturbances.

Empirical Investigations of the MMPI-2 Gender-Masculine and Gender-Feminine Scales

Empirical Investigations of the MMPI-2 Gender-Masculine and Gender-Feminine Scales

Empirical Investigations of the MMPI-2 Gender-Masculine and Gender-Feminine Scales 1Dr Matthew Woo, Principal Psychologist, is now at the Department of Psychology, Institute of Mental Health, 10 Buangkok View, Singapore 539 747.

Abstract. The present study examined the validity of two Minnesota Multiphasic Personality Inventory (MMPI-2) scales - Gender Masculine (GM) and Gender Feminine (GF) - in discriminating between the gender types - Masculine (High GM/Low GF); Feminine (Low GM/High GF); Androgynous (High GM/High GF) and Undifferentiated (Low GM/Low GF), in cross-national clinical samples. The study consisted of 70 Singaporean and 107 Australian psychiatric patients. Significant pairwise comparisons were found for Undifferentiated-Stereotyped Masculinity, Undifferentiated-Androgynous, Stereotyped Femininity-Stereotyped Masculinity, and Stereotyped Femininity-Androgynous on both measures of psychological well-being for both countries, but not for comparisons between the Stereotyped Masculinity-Androgynous and Undifferentiated-Stereotyped Femininity categories. Independent dimensions of masculinity and femininity - the GM and GF scales - were, therefore, found to distinguish between two of the four sex-type categories on measures of psychological well-being. The current findings indicate that the GM and GF scales seem effective in differentiating between Masculine and Feminine traits, however they seem less effective in differentiating between the four gender types.

Lack of association between the serotonin transporter promoter polymorphism (5-HTTLPR) and personality traits in asymptomatic patients with panic disorder

The serotonin transporter promoter polymorphism (5-HTTLPR) has been investigated regarding its association with neuroticism, which, in its turn, is a personality dimension often found in patients with panic disorder (PD). It has been recently evidenced that the long 5-HTTLPR polymorphism has a genetic variation (Lg), which is related to its lower expression. The objective of this study was to assess the association between the 5-HTTLPR polymorphism in the triallelic system and the neurotic personality traits in patients in PD remission. Sixty-seven Caucasian patients with PD diagnosis according to the DSM-IV-TR assessed with the MINI (mini international neuropsychiatric interview) were included. The MMPI (Minnesota multiphasic personality inventory) was used to assess the personality. The remission of PD symptoms was defined as CGI (clinical global impression) ≤2 and absence of panic attacks. The patients’ genotypes were grouped according to the level of expression: low expression (SS, SLg and LgLg), intermediate expression (SLa, LgLa) and high expression (LaLa). There was no significant deviation from Hardy–Weinberg equilibrium ( χ 2 = 0.52, d.f. = 1, p = 0.471). According to the triallelic classification, the distribution of alleles in these patients was as follows: S 58 (43.3%), Lg 17 (12.7%) and La 59 (44.0%). There were no significant differences on the MMPI scales between different genotype classifications and allele analyses. Larger samples are necessary to exclude the less relevant genetic influences on these traits. In addition, other polymorphisms should be considered in the characterization of a heritable phenotype in the PD.

MMPI-2 clusters of alcohol-dependent patients and the relation to Cloninger’s temperament-character inventory

Psychometric research in the field of alcohol dependence has concentrated on identifying certain (personality) characteristics (i.e. typologies). This paper is aimed to identify such typologies and studies the relation of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and Cloninger's temperament-character inventory (TCI). To find MMPI-2 scales associated with maximization of group differences between 222 DSM-IV alcohol dependent inpatients and a control group of 222 normal subjects, discriminant analysis was used. In addition, a cluster analysis was performed with these scales, and the MMPI-2 mean scale values of the resulting patient clusters were examined for their TCI-correlates. The discriminant analyses showed several MMPI-2 scales that could clearly distinguish between alcohol-dependent patients and the normal controls. Cluster analysis resulted in semantically different MMPI-2 profiles implying qualitatively different groups of patients. When related to TCI scales, these differences revealed harm avoidance, self-directedness, and persistence, amongst others, as important elements in the description of the clusters. Evidence for the validity of MMPI-2 constructs as well as those of the TCI in the assessment of alcohol-dependent patients was provided.

Development and Validation of a Response Bias Scale (RBS) for the MMPI-2

This study describes the development of a Minnesota Multiphasic Personality Inventory (MMPI-2) scale designed to detect negative response bias in forensic neuropsychological or disability assessment settings. The Response Bias Scale (RBS) consists of 28 MMPI-2 items that discriminated between persons who passed or failed the Word Memory Test (WMT), Computerized Assessment of Response Bias (CARB), and/or Test of Memory Malingering (TOMM) in a sample of 1,212 nonhead-injury disability claimants. Incremental validity of the RBS was evaluated by comparing its ability to detect poor performance on four separate symptom validity tests with that of the F and F(P) scales and the Fake Bad Scale (FBS). The RBS consistently outperformed F, F(P), and FBS. Study results suggest that the RBS may be a useful addition to existing MMPI-2 validity scales and indices in detecting symptom complaints predominantly associated with cognitive response bias and overreporting in forensic neuropsychological and disability assessment settings.

Brazilian–Portuguese version of defensive style questionnaire-40 for the assessment of defense mechanisms: construct validity study

The aim of this study is to analyze the reliability and validity of the Brazilian–Portuguese version of the Defensive Style Questionnaire (DSQ). Participants were evaluated by clinical interview and the Mini-International Neuropsychiatric Interview. Reliability was assessed by factor analysis and Cronbach's alpha. The 3-factor model's replication was tested using confirmatory factor analysis (CFA). Controls were reevaluated after 4 months to assess test–retest reliability. Subsamples were also evaluated using the Minnesota Multiphasic Personality Inventory and Defensive Functioning Scale (DFS). Factor analysis of the various defense mechanisms produced a distribution of mechanisms among the factors that was largely similar to previous analyses based on the original instrument. The 3-factor model was supported by CFA. The test–retest evaluation showed sufficient intraclass correlation for all factors. Patients used more immature and neurotic defenses than controls. There was a correlation between DFS and immature defenses. Individuals with pathological personality traits scored higher on the immature and neurotic factors than those without. The Brazilian–Portuguese version of the DSQ-40 has psychometric features that allow the use of this instrument in our culture.

Reducing Minnesota Multiphasic Personality Inventory defensiveness: effect of specialized instructions on retest validity in a sample of preoperative bariatric patients

Background Because of the possibility of being denied or delayed surgery, bariatric patients might have a motivation to minimize any emotional difficulties in the preoperative psychological evaluation. This study examined changes in the psychometric test scores when extremely defensive patients were asked to repeat the testing. Methods Changes in the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) scale scores were studied in a subsample of patients referred to the author for a preoperative psychological evaluation. After producing defensive MMPI-2 test profiles, these bariatric patients (n = 31) were provided feedback on their defensiveness and asked to be more open and honest on the repeat testing. Results The vast majority (94%) of the patients produced valid profiles on the second test. On the second test, significant differences were found on 6 of the 13 MMPI-2 scales, as well as on separate measures of depression, anxiety, and anger. Conclusion It appears to be important to include a psychometric measure that includes a validity scale in the evaluation process, because patients might be motivated to present in a defensive or overly virtuous light in fear that a negative evaluation from the psychologist would adversely affect a decision regarding their candidacy for surgery. It is recommended that patients who are defensive in their testing be asked to repeat the test battery.

Psychopathological features of anorectic patients who dropped out of inpatient treatment as assessed by the Minnesota Multiphasic Personality Inventory

BackgroundAnorexia nervosa often requires inpatient treatment that includes psychotherapeutic intervention in addition to physical and nutritional management for severe low body weight. However, such patients sometimes terminate inpatient treatment prematurely because of resistance to treatment, poor motivation for treatment, unstable emotions, and problematic behaviors. In this study, the psychopathological factors related to the personality of anorexic patients that might predict discontinuation of inpatient treatment were investigated using the Minnesota Multiphasic Personality Inventory (MMPI).MethodsSubjects were 75 consecutive anorectic inpatients who received cognitive behavioral therapy with a behavior protocol governing privileges in a university hospital based general (not psychiatric) ward. The MMPI was done on admission for all patients. A comparison was done of patients who completed the process of inpatient treatment, including attainment of target body weight (completers), and patients who dropped out of inpatient treatment (dropouts). Results: No significant differences between completers (n = 51) and dropouts (n = 24) were found in the type of eating disorder, age of onset, duration of illness, age, or BMI at admission. Logistic regression analysis found the MMPI scales schizophrenia (Sc), hypomania (HYP), deviant thinking and experience, and antisocial attitude to be factors predicting completion or dropout.ConclusionDropouts have difficulty adapting to inpatient treatment protocols such as our behavior protocol governing privileges because they have social and emotional alienation, a lack of ego mastery (Sc), emotional instability (HYP) and an antisocial attitude. As a result, they have decreased motivation for treatment, leave the hospital without permission, attempt suicide, or shoplift, which leads them to terminate inpatient treatment prematurely. Treatments based on cognitive behavioral therapy with a behavior protocol governing privileges should be carefully adopted for anorectic patients who exhibit the psychopathological elements identified in this study.

Paul E. Meehl's Contributions to Personality Assessment.

Many of Meehl's interests converged in his work on personality assessment. In empirical research, development of the K scale of the Minnesota Multiphasic Personality Inventory and various scales of other tests are noteworthy, but his most profound contributions were conceptual and philosophical. Essays on the role of base rates in clinical decision and on construct validity in psychological tests provided vital insights on core issues in assessment. The concept of nomological nets allowed systematic investigation of unobservable theoretical entities, with liberating effects on all natural sciences. An active clinician, Meehl understood deeply the complexities of professional service, but his insistence on empirical validation as the ultimate arbiter of the value of any procedure required all attainable rigor in the scientific foundations of clinical practice.