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PubMed1982

Dyspnea proneness to CO2 stimulation and personality (neuroticism, extraversion, MMPI factors).

The relationship between extroversion (E), MMPI factors on the one hand and the ventilatory response to CO2 on the other was examined in order to extend and clarify earlier studies. 30 male nonsmokers were studied using the method of Read (delta VE/PaCO2 as index of readiness to react with dyspnea upon CO2 stimulation). Extroversion (E) and neuroticism (N) was assessed by the Eysenck Personality Test. The panic-fear (PF) and the ego-strength (Es) scales were extracted from the MMPI. The correlation between E, N, MMPI values and delta VE/PaCO2 was measured with Pearson's correlation. Reliability between the first and second respiratory test was obvious, r = 0.66 (p less than 0.001). The correlation between the psychological parameters and the readiness to respond to CO2 was very low in the first test. In the second test, the r for hypochondriasis, depression and PF was 0.25, 0.28 and 0.29, respectively (p less than 0.1; 2-tailed), for N the r was 0.33, for psychastheny 0.33, and for Es -0.40 (all p less than 0.05). In agreement with Saunders and co-workers, we found no correlation for E. Our results indicate that readiness to react to CO2 is related to anxiety (positive correlations for N, Hs, Pt and PF, and negative for Es). This corresponds to clinical observations.

Adult↗
PubMed1998

Prospective study of a self-report type A scale and risk of coronary heart disease: test of the MMPI-2 type A scale.

BACKGROUND: Several methods exist by which to assess type A behavior (TAB). Although the videotaped clinical interview is regarded as the "gold standard," self-report measures have also proved useful in assessing TAB in large population studies. The purpose of this study was to examine prospectively the relationship of TAB to risk of coronary heart disease (CHD) incidence with the use of the revised Minnesota Multiphasic Personality Inventory (MMPI-2) Type A Scale. To the best of our knowledge, this is the first test of this scale in the context of predicting CHD incidence. METHODS AND RESULTS: The study was performed in the VA Normative Aging Study, an ongoing cohort of older (mean age, 61 years) community-dwelling men. A total of 1305 men who were free of diagnosed CHD in 1986 completed the MMPI-2 Type A Scale. During an average 7.0 years of follow-up, 110 cases of incident CHD occurred. Compared with men in the lowest quartile of type A scores, men in the highest quartile had multivariate adjusted relative risks of 2.86 (95% CI, 1.19 to 6.89; P for trend=0.016) for combined CHD death and nonfatal myocardial infarction (MI) and 2.30 (95% CI, 1.32 to 4.01; P for trend=0.001) for combined CHD death/nonfatal MI plus angina pectoris. The relationship of TAB to CHD was independent of measures of anger and cynicism. CONCLUSIONS: The MMPI-2 Type A Scale predicts CHD incidence. Further research is warranted to examine the correlation, if any, between this scale and the videotaped clinical interview.

Adult↗
PubMed1980

Validity of the MMPI with native Americans.

A study was conducted to determine the validity of the MMPI for 142 American Indian patients from Pacific Northwest tribes. All the MMPI profiles were similar and had significant elevations in the Sc, Pd, and Pa scales. There was no significant difference between diagnostic groups on many clinical scales. Nonpsychotic, depressed Indian patients could not be distinguished from schizophrenic patients on any clinical scale, and there were no significant differences between antisocial-alcoholic patients and those with situational reactions. There were minimal differences between the Northwest Coast, Plateau, and Plains cultural groups. The authors believe that the similarity of all subgroup profiles demonstrates a significant cultural influence on the results of the MMPI in this population of American Indians.

Adult↗
PubMed1986

Natural killer cell activity and MMPI scores of a cohort of college students.

Natural killer (NK) cells are important in immune function and appear, in part, to be regulated by the CNS. The authors compared NK cell activity and MMPI scores of 111 healthy college students and found weak but statistically significant correlations between NK values and psychopathology for 10 of 12 scales. Students with the highest NK values had a "healthier" MMPI profile than those with the lowest. Students with high MMPI scores (T greater than 70) had NK values below the sample median. These findings support theories of interaction between mental state and immune status, but the mechanisms and direction of interaction remain largely unexplored.

Adolescent↗
PubMed1993

Premilitary MMPI scores as predictors of combat-related PTSD symptoms.

OBJECTIVE: The authors used data collected before military service to assess predictors of combat-related lifetime symptoms of posttraumatic stress disorder (PTSD). METHOD: The subjects were 131 male Vietnam and Vietnam-era veterans who had taken the MMPI in college and who were interviewed as adults with the Structured Clinical Interview for DSM-III-R. Scores on the basic MMPI scales were used to predict combat exposure, lifetime history of any PTSD symptoms given exposure, and lifetime PTSD classification (symptoms only, subthreshold PTSD, or full PTSD). RESULTS: Group means on the MMPI scales were within the normal range. No scale predicted combat exposure. Hypochondriasis, psychopathic deviate, masculinity-femininity, and paranoia scales predicted PTSD symptoms. Depression, hypomania, and social introversion predicted diagnostic classification among subjects with PTSD symptoms. The effects persisted when amount of combat exposure was controlled for. CONCLUSIONS: Pre-military personality can affect vulnerability to lifetime PTSD symptoms in men exposed to combat.

Adult↗
PubMed1982

Psychologist and physician diagnoses of hospitalized patients with similar MMPI symptomatology.

MMPI profiles, including L, K, and F validity scale data, were examined for 40 hospitalized psychiatric patients, for whom diagnoses from both psychologists and physicians were available. Comparison of diagnostic patterns of the same patients, especially for diagnoses of Personality Disorders and Schizophrenics, showed relatively little agreement between disciplines. Discriminant function analyses showed also that each discipline weighted MMPI scales differently in determining diagnosis, even though the scale profiles for each patient in the sample were essentially identical. The MMPI seemingly played a nonsignificant role in determining a set of inconsistently applied diagnoses.

Antisocial Personality Disorder↗
PubMed1982

The use of the MMPI for the differentiation of suicidal and non-suicidal depressions.

The MMPI profiles of forty suicidal and forty non-suicidal male and female depressed patients, matched for age, were compared. Significant differences between MMPI scale T scores which showed some sex specificity were found between the suicidal and non-suicidal depressives. These results replicate previous findings. However neither individual scale T scores, derived discriminant functions, nor actuarial or cluster analysis-derived MMPI profiles could completely discriminate between suicidal and non-suicidal depressed inpatients of either sex. The relevance and implications of these findings to the ascertainment of suicidal risk are discussed.

Adult↗
PubMed2000

Comparison of MMPI-2 profiles of Gulf War veterans with epileptic and nonepileptic seizure patients.

As part of a larger study of illnesses related to service in the Gulf War, MMPI-2 profiles of epileptic seizure (ES) patients; nonepileptic seizure (NES) patients; Gulf War veterans with unexplained cognitive, psychological, musculoskeletal, fatigue, or dermatologic symptoms; and asymptomatic Gulf War veterans (Controls) were analyzed. There were 70 people in each group. Seizure diagnosis was based upon intensive EEG monitoring. Gulf War cases were mildly abnormal on MMPI-2 Scales Hs and D and significantly higher than controls on 8 of 10 MMPI-2 clinical scales, but they were significantly lower than NES patients on several scales including Hs and Hy.

Adult↗
PubMed2000

A shortened version of the MMPI-2.

A psychometrically sound method of prorating scores from a shortened version of the MMPI-2 is presented to approximate the full-scale raw scores on the basic scales. After a brief review of the history of short versions of the original MMPI and their strengths and weaknesses, justifications for developing and publishing this new version are offered. In spite of the risk of abuse by harassed and over-worked clinicians, there are cogent reasons to make this set of procedures available to practitioners and research investigators. These procedures were devised on the data from the 2,600 men and women in the original MMPI-2 restandardization sample and cross-validated on a sample of 632 test records from a psychiatric inpatient service. The dependability of estimated single raw scores as well as of the patterning of the prorated profile patterns is explored.

Data Interpretation, Statistical↗
PubMed2001

Subtypes of clinical presentations in malingerers of posttraumatic stress disorder: an MMPI-2 cluster analysis.

This paper investigated subtypes of individuals trained and instructed to malinger Posttraumatic Stress Disorder (PTSD) through a cluster analysis of their Minnesota Multiphasic Personality Inventory-2 (MMPI-2) clinical and validity scales. Participants were 84 men and women college students at a community college in the southeastern United States. Two well fitting MMPI-2 cluster solutions were evaluated with discriminant analyses and multivariate analyses of variance (MANOVAs); a 2-cluster solution was deemed optimal. Significant between-cluster differences emerged in follow-up analyses on most of the content scales of the MMPI-2. Most demographic variables did not account for differences in cluster membership. Clusters differed in their reported clarity of the materials used to educate them about PTSD. Discriminant analyses yielded better correct classification rates than those from previous studies, when the more severely symptomatic cluster was compared with a sample of clinical combat-related PTSD veterans. Implications are considered in conducting future malingered PTSD investigations.

Adolescent↗
PubMed2001

The detection of malingered posttraumatic stress disorder with MMPI-2 fake bad indices.

This investigation explored the effect of posttraumatic stress disorder (PTSD) simulation on Minnesota Multiphasic Personality Inventory-2 (MMPI-2) responses, to detect malingered from genuine PTSD. Sixty-four adult PTSD outpatients at a child sexual abuse (CSA) survivor treatment program were compared with 85 adult college students instructed and trained to malinger PTSD. MMPI-2 overreporting indices examined were F, F-Fb, F-K, F(p), Ds2, O-S, OT, and FBS. A stepwise discriminant analysis identified F(p), F-K, and O-S as the best malingering predictors. A predictive discriminant analysis yielded good hit rates for the model, with impressive cross-validation results. Cutoff scores were assessed for the model's predictors. Clinical implications for detecting malingered PTSD using the MMPI-2 are discussed.

Adult↗
PubMed2001

The utility of MMPI-2 suicide items for assessing suicidal potential: development of a Suicidal Potential Scale.

The assessment of suicidal potential is one of the most challenging and stress-inducing tasks facing clinicians. Studies that have attempted to identify specific MMPI codetypes, scales, or individual items predictive of completed suicide have produced inconsistent findings. This study focused on the relationship between the six most direct MMPI-2 suicide items (Items 150, 303, 506, 520, 524, and 530) and verbally reported history of suicidal ideation and behavior among a sample of psychotherapy outpatients (n =116). These six MMPI-2 suicide items provided valuable information regarding suicidal ideation and behavior above and beyond that of verbal self-report. These items were grouped together to create a single scale, the Suicidal Potential Scale (SPS) that manifested strong internal consistency. The SPS provides the clinician with a reliable method of assessing for self-reported suicidal ideation and behavior.

Adult↗
PubMed2001

MMPI-2 scale F(p) and symptom feigning: scale refinement.

The F(p) scale of the MMPI-2 is widely used to help identify exaggeration of psychological problems in psychiatric, forensic, and neuropsychological settings. The scale was constructed by selecting all MMPI-2 items (N = 27) that were endorsed by less than 20% of a sample of VA psychiatric inpatients and 20% of the normative sample used in restandardizing the MMPI-2. Although F(p) is used to measure symptom exaggeration and malingering, 4 of its 27 items load on the Lie (L) scale, which is known to be a measure of defensiveness and symptom underreporting. These four items, which express a denial of occasional anger, irritability, and procrastination, could conceivably measure an uncommon expression of defensiveness. This study used 150 neuropsychological referrals to test the hypotheses that (a) the four L scale items measure defensiveness, not exaggeration, and (b) the elimination of these items improves the utility of F(p) in assessing symptom exaggeration. The results indicate that the four L scale items are associated with defensiveness, not with symptom exaggeration. One third of the patients had an average T-score artifact of 9.5 points on F(p) as a result of endorsing these L scale items, with a range of 0T to 21T. Using the K scale as a criterion for level of problem disclosure, a shortened version of F(p) (omitting the four L scale items) was superior to F(p) as a measure of symptom exaggeration (r = -.46 vs. -.36, r2 = 21% vs. 13% of the variance). The implications for clinical practice are discussed.

Adult↗
PubMed2003

Sensitivity and specificity of MMPI-2 neurologic correction factors: receiver operating characteristic analysis.

A number of Minnesota Multiphasic Personality Inventory-2 (MMPI-2) items have been hypothesized to reflect neurologic symptomatology, rather than psychopathology, among closed-head-injury (CHI) patients. Some investigators have proposed a correction factor interpretive approach, which involves the deletion of such items from the MMPI-2 profile, as a method of reducing the probability of artificial clinical scale elevations due to the symptoms of CHI. The present study employed receiver operating characteristic (ROC) analysis to evaluate the sensitivity and specificity of three correction factors. All three factors demonstrated strong sensitivity when discriminating CHI patients from normal individuals but demonstrated poor specificity when discriminating CHI patients from psychiatric patients. These findings suggest that caution should be applied in using MMPI-2 neurologic correction factors, particularly with patients who might have comorbid psychiatric conditions.

Adult↗
PubMed2004

A replication of the MMPI-A PSY-5 scales and development of facet subscales.

McNulty, Harkness, Ben-Porath and Williams recently developed Personality Psychopathology Five (PSY-5) scales for the Minnesota Multiphasic Personality Inventory-A (MMPI-A). This study examined these new scales in a sample of 545 adolescents receiving inpatient psychiatric treatment. Item-level principal components analyses were employed to determine the internal structure of each PSY-5 scale and to aid in the creation of facet subscales for each PSY-5 scale. Results suggest that the MMPI-A PSY-5 scales display adequate internal consistency and our findings generally replicate the original work of McNulty et al. but also extend this work by showing that several of the PSY-5 scales may also be subdivided into meaningful lower level dimensions. These facet subscales for each of the MMPI-A PSY-5 scales are offered for further study.

Adolescent↗
PubMed2003

Correlates of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) Personality Psychopathology Five (PSY-5) scales in a forensic assessment setting.

Empirical correlates of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) Personality Psychopathology Five (PSY-5) scales in a forensic assessment setting were identified. Archival extratest data, including demographics, psychosocial history, criminal behavior history, and current mental status and psychodiagnosis, were extracted from the case files of 593 men and women referred to a forensic assessment clinic for criminal court-ordered evaluations. Zero-order and multiple correlations were calculated between the MMPI-2 PSY-5 scales and relevant criterion variables. Findings indicated that the PSY-5 scales' empirical correlates in a forensic setting are similar to and consistent with those found in general mental health settings. Linear combinations of MMPI-2 PSY-5 Scale scores accounted for moderate proportions of variance in the collateral indicators.

Adult↗
PubMed2003

An MMPI-2 scale to detect malingered depression (Md scale).

A specialized Minnesota Multiphasic Personality Inventory-2 (MMPI-2) validity scale was constructed to detect individuals who are knowledgeable about either depression or MMPI-2 detection strategies and who subsequently attempt to malinger depressive symptoms on the MMPI-2. The Malingered Depression (Md) scale consists of 32 items that discriminated college students who feigned depression from those who were genuinely depressed. Further information about the incremental validity and the utility of the Md scale was obtained in a cross-validation study with additional college students who feigned depression and a sample of students with clinically significant depressive symptoms. The results indicate that the Md scale possesses promising value in detecting malingered symptoms of depression.

Adult↗
PubMed2004

Discriminating malingered from genuine civilian posttraumatic stress disorder: a validation of three MMPI-2 Infrequency scales (F, Fp, and Fptsd).

The Infrequency-Posttraumatic Stress Disorder scale (Fptsd), recently created for the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), has demonstrated incremental validity over other MMPI-2 scales in malingered posttraumatic stress disorder (PTSD) detection. Fptsd was developed with combat-exposed PTSD patients, potentially limiting its use with PTSD patients in general. The current study evaluated the MMPI-2's F, Infrequency-Psychopathology scale (Fp), and Fptsd scales in discriminating genuine civilian PTSD among 41 adult victims of child sexual abuse from a group of 39 students instructed to simulate PTSD. Analyses demonstrated Fptsd's incremental validity over F but not over Fp. Based on the two studies examining Fptsd, Fptsd may be more appropriate for combat trauma victims, and Fp may be more appropriate for civilian trauma victims.

Adolescent↗