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PubMed1995

Multivariate discriminant function analysis of neurologic, pain, and psychiatric patients with the MMPI.

The ability of the MMPI to classify five well-defined patient groups was investigated (N = 394; control, neurologic, psychiatric, chronic pain, and random). Clinical inspection and discriminant function analyses of basic clinical and research scales could not classify groups correctly, but discriminant function analyses of 37 variables loaded with CNS items (Cripe Neurologic Symptom items) correctly classified the groups with 78% overall accuracy (70% of neurologic, 62% of psychiatric, 81% of pain, 84% of controls, and 100% random). Results indicate that differential diagnosis is not possible with clinical inspection of scales, but complex statistical analysis of the MMPI is potentially useful in diagnosis and decision making. A method for applying the discriminant function analysis to individual cases is provided.

Activities of Daily Living↗
PubMed1995

Differential sensitivity of the MMPI-2 depression scales and subscales.

The MMPI-2 was administered to 122 psychiatric inpatients (62 female, 60 male, mean age 37 years). The various MMPI-2 depression scales and subscales were examined to compare their relative sensitivity. Using the 65T cut-off, scales DEP and D identified approximately 60% and 62%, respectively, as suffering depressotypal symptoms. Using a 70T cut-off, scales D1, D2, D3, D4, D5, D-Obvious, and D-Subtle identified 53%, 24%, 37%, 57%, 45%, 53%, and 3%, respectively, as suffering depressotypal symptoms. These findings are discussed in terms of their implications for clinical practice.

Adult↗
PubMed1995

Differential validity of the MMPI-2 Subtle and Obvious scales with psychiatric inpatients: scale 2.

The construct and concurrent validity of the MMPI-2 Scale 2 Subtle and Obvious scales were examined for a group of 67 psychiatric inpatients. Validity coefficients for the Obvious scale were uniformly greater than those for the Full and Subtle scales. Subtle scale validity coefficients were negative and attenuated the validity of the Full clinical scale. Use of Obvious items resulted in more accurate prediction of assessed suicide risk, while inclusion of the Subtle items did not add any useful information in the prediction of assessed suicide risk or psychiatric diagnosis. It is recommended that future research that uses the MMPI-2 basic clinical scales examine the differential validity of the Subtle and Obvious scales.

Adolescent↗
PubMed1995

Personality disorder correspondence among the MMPI, MBHI, and MCMI.

MMPI, MBHI, and MCMI personality disorder scales were analyzed for convergent and discriminant validity. Friedman's ANOVA indicated that there were no significant differences among the sample's averaged scale scores. Further analyses of these data, however, demonstrated that the Millon instruments classified significantly more of the sample as personality disordered when compared to Morey's MMPI personality disorder scales. In addition, codetype correspondence among the three instruments was only 4 to 6%. When the instruments were analyzed in a pair-wise fashion, codetype correspondence increased to approximately 10 to 20%. These data indicate that these personality disorder scales do not demonstrate construct equivalence, particularly at the level of the individual profile.

Adult↗
PubMed1980

MMPI profiles and code types of responsible and non-responsible criminal defendants.

Compared MMPI profiles and two-point code types of criminal defendants (N = 50) who were pleading a defense of "not responsible due to mental disease or defect." In examining the mean, non-K corrected raw scores, no significant differences were found between those defendants determined responsible and those determined non-responsible on individual MMPI scales. A sign test was computed, treating the clinical scales as matched pairs, and a significant difference was found; the non-responsible group profile was more elevated. Two-point codes were determined for each group member, and the percentages of individuals within each group who had the same two-point codes were calculated. A chi-square test was significant, which indicates that there is an association between the classification of an individual and the two-point code produced. The 8-7 code type was modal for the responsible group, while the 8-6 code type was modal for the non-responsible group. These findings are discussed, and future research directions in this area are suggested.

Adult↗
PubMed1984

Polysomnographic and MMPI characteristics of patients with insomnia.

This report represents the polysomnographic aspects of sleep and the psychological characteristics of a large series of patients with insomnia classified according to the diagnostic system of the Association of Sleep Disorders Centers. The findings for patients in the various diagnostic categories were compared to those of symptomatic patients with no objective findings. 9 specific diagnoses were made, but 4 diagnoses accounted for the majority of patients. The 4 most prevalent were psychophysiological disorders (15%), psychiatric disorders (17%), nocturnal myoclonus and restless legs (18%), and no objective findings (19%). Patients of a sleep disorders center are a select population and may not be representative of the general population of patients with insomnia complaints. The psychological characteristics of the different diagnostic groups were assessed by computing the number of elevations on the MMPI. Patients with a psychiatric diagnosis exhibited the highest number of MMPI elevations, as might be expected. Patients with nocturnal myoclonus had the lowest number of elevations. The other groups did not significantly differ from the group with no objective findings. Polysomnographic measures of sleep differed considerably among the diagnostic groups. The groups with medical disorders, respiratory impairment, atypical polysomnographic features, and nocturnal myoclonus had similar short sleep latencies to those of the group with no objective findings. With longer wake times before sleep and significantly different from patients with no objective findings were the psychophysiological disorder, psychiatric disorder and drug and alcohol groups. Patients with a circadian rhythm disturbance had the longest latencies.(ABSTRACT TRUNCATED AT 250 WORDS)

Circadian Rhythm↗
PubMed1977

[Contribution to differential-diagnostic validity of MMPI to prognosis of efficiency of autogeneous training (author's transl)].

Due to the fact, that a group of patients were not able to achieve success in the autogeneous training in spite of usual selection after diagnostic criteria, we submitted them as well as a control group to the MMPI. We found significant differences in the Hd-, D-, Hy-, and Si-scales. Then we calculated the discriminance function and the cut-off score and found after MMPI-profile an 80% probability of predicting if a patient will succeed in autogeneous training or not.

Autogenic Training↗
PubMed1978

A twin study on three enzymes (DBH, COMT, MAO) of catecholamine metabolism. Correlations with MMPI.

Ina a sample of 48 healthy adult male twin pairs (24 MZ, 24 DZ) the activities of DBH (serum), COMT (red blood cells), and MAO (platelets) were determined. The twins had undergone a detailed psychodiagnostic test procedure before. Interindividual variability of enzyme activities is almost exclusively genetically determined. No correlation between enzyme activities within one subject is found. Correlations between enzyme activities and MMPI test scores were calculated. As in a comparable investigation by Murphy et al. (1977), negative correlations between MAO activity and MMPI scores prevailed.

Adult↗
PubMed1993

Minnesota Multiphasic Personality Inventory (MMPI) cluster groups among chronically ill patients: relationship to illness adjustment and treatment outcome.

Cluster analysis of the MMPI has been utilized widely in the chronic low back pain literature to try to identify reliable patient subtypes predictive of treatment outcome. We extended this methodology to patients with heterogeneous chronic medical conditions by replicating prototypic MMPI cluster group profiles and by relating cluster groups to clinical baseline and outcome data. Subjects were two independent samples (n = 254 and n = 263) of chronically ill patients admitted to an inpatient medicine/psychiatry unit. Using a four-cluster solution, similar cluster profile groups were replicated in both samples. Consistent differences emerged between cluster groups on functional impairment, psychiatric diagnoses, depression, and psychosomatic symptoms. Cluster group membership also predicted changes in functional impairment and depression six months after treatment. Results are discussed in terms of similarities between chronic low back pain and chronic illness and tailoring treatment to different patient types.

Adaptation, Psychological↗
PubMed1978

Multivariate analyses of the MMPI profiles of low back pain patients.

A multivariate clustering procedure was used to identify replicable, homogeneous MMPI profile subgroups among three independent cohorts of male (N = 233) and female (N = 315) low back pain ((LBP) patients. Three subgroups were replicated across all male cohorts and four subgroups were replicated across all female cohorts. Multiple discriminant analysis showed that for both male and female patients between-subgroup variability was significantly greater than within-subgroup variability. The results suggest that LBP patients may not be solely characterized by MMPI profiles featuring the "conversion V" configuration. Examination of the profile subgroups also suggests there may be distinct, pain-related, behavioral attributes associated with each subgroup which might have important implications for practitioners' choice of treatment modalities. Suggestions are made for research regarding the development of specific, optimal treatments for various LBP patient subgroups.

Analysis of Variance↗
PubMed1988

The Minnesota Multiphasic Personality Inventory (MMPI) Hysteria (Hy) scale: scoring bodily concern and psychological denial subscales in chronic back pain patients.

Chronic back pain patients were compared to two nonpain comparison groups on Minnesota Multiphasic Personality Inventory (MMPI) Hysteria (Hy) scores and scores on two Hy subscales: Bodily Concern and Psychological Denial. Pain subjects had significantly higher scores on the Bodily Concern Subscale and lower scores on the Psychological Denial Subscale than nonpain subjects with similar elevated Hy scores. However, pain subjects had Psychological Denial scores similar to those of subjects with normal MMPI profiles, despite significantly higher Hy scores. These findings are interpreted to support the hypothesis that, among pain patients, Hy elevations are partially accounted for by the endorsement of a disproportionate number of Bodily Concern items. Finally, within pain patients, scores on the Bodily Concern subscale were significantly related to more indices of pain duration and severity than were scores on the Psychological Denial subscale. The potential clinical utility of scoring these subscales is discussed.

Adult↗
PubMed1992

An adoption and a cross-fostering study of the Minnesota Multiphasic Personality Inventory (MMPI) Psychopathic Deviate Scale.

The first of two complementary studies compared biological and adoptive parents of teenage adoptees with either higher (n = 21) or low (n = 51) MMPI Psychopathic Deviate (Pd) scale scores. In comparison to biological mothers of the low-Pd adoptees, biological mothers of the high-Pd adoptees obtained significantly higher MMPI scores on six of eight clinical scales. Fewer differences existed between the corresponding groups of adoptive mothers, but adoptive mothers of the high Pd's did obtain significantly higher scores on the Pd and Hypomania scales. Substantial genetic correspondences also existed for Harris-Lingoes content subscales, with fewer correspondences between adoptees and their adoptive mothers. There were indications that adoptive mothers of the high-Pd children had personality traits which may have made them less effective in attenuating early signs of antisocial behavior. The second study employed a cross-fostering design dividing all biological and adoptive mothers (n = 138 each) by their respective median Pd raw scores to examine effects on offspring. Results confirmed the effect of biological mother Pd score, but only a trend suggested an adoptive mother effect, with no hint of an interaction.

Adolescent↗
PubMed1981

A study of pre- and postsurgical transsexuals: MMPI characteristics.

This study examines assessment issues concerning transsexualism through the use of the Minnesota Multiphasic Personality Inventory (MMPI). The MMPI was administered to 20 transsexuals matched within sex on age and education: five presurgical male-to-females, five postsurgical male-to-females, five presurgical female-to-males, and five postsurgical female-to-males. Mean T scores for each of these four subsamples were examined in comparison to normative groups. Comparisons among the four subsamples showed significant differences in mean raw scores attributable to both sex and surgical status. The most striking of these comparisons indicated that postsurgical subjects had a higher level of psychological adjustment.

Female↗
PubMed1993

MMPI assessment of patients with functional bowel disorders.

This prospective study was undertaken to assess personality differences among patients with chronic pelvic floor disorders. Sixty patients (43 females and 17 males) of a mean age of 58 (range, 33-87) years with fecal incontinence (n = 19), constipation (n = 30), or levator spasm (n = 11) had a mean duration of symptoms of 35 (range, 2-50) years. The Minnesota Multiphasic Personality Inventory (MMPI) was utilized for psychologic assessment for all patients prior to treatment. Mean scores for scales 1 (hypochondriasis), 2 (depression), and 3 (hysteria) were significantly elevated for the levator spasm group (71, 75, and 73, respectively). A similar pattern was seen for the constipation group, where the mean scores for scales 1 and 2 were significantly elevated (70 and 74, respectively) with a moderate elevation on scale 3 (68). The hypochondriasis (1), depression (2), and hysteria (3) scales are referred to as the "neurotic triad," and profile patterns such as these indicate that these subjects may manifest their psychologic distress as physical symptoms. By contrast, the fecal incontinence patients were within the normal range on all scales. The information from these MMPI profiles can be used to understand the personality and emotional composition of these patients to assist in their evaluation and treatment.

Adult↗
PubMed1996

The Keane PTSD Scale extracted from the MMPI: sensitivity and specificity with Vietnam veterans.

A study was conducted to further investigate whether the Keane Posttraumatic Stress Disorder (PTSD) Scale of the Minnesota Multiphasic Personality Inventory (MMPI) can be employed as a separate instrument administered outside the context of the full MMPI. A group of Vietnam combat veterans with diagnosed PTSD and two comparison groups of veterans without PTSD (Vietnam combat and era veterans) were diagnosed by clinical interviews. Over 84% of the 64 veterans in the study were accurately classified by the Keane PTSD Scale into their original diagnostic groups. Excellent test sensitivity was demonstrated, with 90% of combat veterans with PTSD being properly classified by the Keane PTSD Scale when the recommended cutoff score of 30 was utilized. The clinical and research implications are discussed.

Adult↗
PubMed1996

MMPI profiles of acute and chronic PTSD in a civilian sample.

In a treatment setting, a group of 165 subjects presenting with either acute or chronic posttraumatic stress disorder (PTSD) were compared to 72 subjects presenting with panic disorder only in order to determine whether the MMPI PTSD assessment strategy developed with Vietnam veterans could be validly used with civilians. Results indicated that the MMPI profile, codetype, diagnostic decision rule, and PK scale developed with samples of Vietnam veterans did not apply well to civilians, especially those presenting with acute PTSD. It is thus recommended that specific assessment strategies be developed for these populations.

Acute Disease↗
PubMed1995

Post-traumatic stress disorder and the MMPI-2.

This study compared the MMPI-2 profiles of 27 veterans diagnosed with post-traumatic stress disorder with a non-PTSD comparison group of 27 veteran patients receiving inpatient treatment for other mental disorders. Three multivariate analyses of variance were conducted comparing the two groups on the 10 traditional clinical scales, the 12 supplemental scales and the 15 new content scales on the MMPI-2. The PTSD group obtained a mean profile with peak elevations on the F validity scale and on clinical Scales 2 (D) and 8 (Sc). The multivariate analysis of variance comparing the PTSD and non-PTSD groups across the 10 traditional clinical scales was not significant. The multivariate analyses of variance comparing the two groups on the 12 supplemental scales and the 15 content scales were significant. Significant univariate supplemental scale differences were found on the Keane PTSD scale (PK) and the Post-Traumatic Stress Disorder (PS) scale with the PTSD group scoring higher on PK and PS. Significant univariate content scale differences were found for the Anger (ANG) scale with the PTSD group scoring higher. A cut-off score of 28 on the PK scale correctly classified 76% of the overall sample, 67% of the PTSD group and 85% of the non-PTSD-comparison group.

Adult↗
PubMed1996

Examining comorbidity and posttraumatic stress disorder in a Vietnam veteran population using the MMPI-2.

Examined the discriminant validity of the MMPI-2 in assessing comorbidity in a posttraumatic stress disorder (PTSD) Vietnam veteran population. The Structured Clinical Interview for the DSM-III-R (SCID) was used to diagnose veterans and to classify them into four groups: PTSD Only, PTSD with mood disorders, PTSD with other anxiety disorders, and PTSD with mood and anxiety disorders. All groups had clinical elevations on scales F, 1, 2, 3, 4, 6, 7, 8, 0, PK, and PS, with peak elevations on scales 8, 7, and 2. The PTSD Only group's MMPI-2 scores were not significantly lower than other groups' scores. The PTSD+Mood/Anxiety group was significantly more elevated on scales 2 and 7 than the PTSD Only and PTSD+Anxiety group but did not otherwise show significantly higher scale elevations than others groups. No significant differences existed between groups on scales F, L, K, PK, and PS. Implications of these results for PTSD and the current diagnostic system are explored.

Anxiety Disorders↗