The operating characteristics of the Millon Clinical Multiaxial Inventory

The operating characteristics of the 20 scales of the Millon Clinical Multiaxial Inventory (MCMI) were analyzed with respect to the construction sample data as presented in the test manual. Sensitivity, specificity, positive predictive power, negative predictive power, and overall diagnostic power of each scale were derived. Results indicated that eight scales show excellent characteristics, nine were classified as fair, and three were determined to have poor positive predictive power for identifying the presence of a syndrome in an individual patient. Five scales had good positive predictive power for identifying the most prominent syndrome in a patient's clinical picture, eleven scales were classified as fair, and four were seen as poor on this dimension. We suggest a method for determining the utility of individual scales for different clinical populations and discuss implications of this type of analysis of the MCMI for diagnosis of the individual case.     

Stability of the MCMI among depressed psychiatric outpatients

The Millon Clinical Multiaxial Inventory (MCMI) is a promising, yet somewhat unproven psychometric inventory developed to identify clinical syndromes and personality traits consonant with the Diagnostic and Statistical Manual of Mental Disorders (3rd ed. [DSM-III]; American Psychiatric Association, 1980). The stability of its measures for both the theoretically more stable personality characteristics and the clinical syndromes was investigated in a group of depressed psychiatric outpatients. In this test-retest design with a 3-month interval between tests, clinical syndrome scales of relevance changed significantly as expected. However, many of the personality scales also changed significantly. Only four of the personality scales met a two-fold test of stability. Findings are discussed in terms of characteristics of self-report inventories such as the MCMI, the uniqueness of the depressed population, and characteristics of personality disorders.     

Stability of the MCMI Among Depressed Psychiatric Outpatients

The Milton Clinical Multiaxial Inventory (MCMI) is a promising, yet somewhat unproven psychometric inventory developed to identify clinical syndromes and personality traits consonant with the Diagnostic and Statistical Manual of Mental Disorders (3rd ed. [DSM-III]; American Psychiatric Association, 1980). The stability of its measures for both the theoretically more stable personality characteristics and the clinical syndromes was investigated in a group of depressed psychiatric outpatients. In this test-retest design with a 3-month interval between tests, clinical syndrome scales of relevance changed significantly as expected. However, many of the personality scales also changed significantly. Only four of the personality scales met a two-fold test of stability. Findings are discussed in terms of characteristics of self-report inventories such as the MCMI, the uniqueness of the depressed population, and characteristics of personality disorders.     

An examination of the relationship between personality patterns and symptom/mood patterns

Relationships between various personality styles measured by the basic and pathological personality scales of the Millon Clinical Multiaxial Inventory (MCMI) and mood or symptom states measured by the Profile of Mood State scales were examined. The MCMI personality scale-POMS symptom/mood scale relationships found in this study are compared with MCMI personality scale-MMPI and SCL-90 symptom/mood scale relationships reported in the MCMI manual. Consistent associations of moderate strength were found between: (a) the MCMI Compulsive-Conforming and Passive-Aggressive (Negativistic) scales (negative and positive associations, respectively) and various measures of depression, anxiety and hostility; (b) the MCMI Avoidant, Schizotypal and Borderline-Cycloid scales and various measures of depression and anxiety; (c) the MCMI Schizoid-Asocial scale and various measures of depression; and (d) the Histrionic-Gregarious scale and various measures of high energy-activity. These MCMI personality scale-symptom/mood scale relationships are generally consistent both with the underlying theory of personality and psychopathology upon which the MCMI is based and with the personality-symptom scale relationships found within the MCMI.     

Retest Reliability of the Million Clinical Multiaxial Inventory

This article reports on two studies which examined the temporal stability of the personality disorder subscales from the Millon Clinical Multiaxial Inventory (MCMI). The scales demonstrated adequate stability in psychiatric inpatients (retested with an average of just over 1 year between testings). Furthermore, a separate sample of depressed inpatients assessed when depressed and 6 weeks later showed that the stability of MCMI personality scales was observed even after patients displayed an initial reduction in depression severity. Although stability is vital to the accurate assessment of personality disorders, both studies also found high retest correlations for the MCMI clinical syndrome subscales. In general, these results suggest that patients displayed similar symptom patterns over time, whether construed as personality traits or characteristic patterns of responding when symptomatic.     

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Relationships between various personality styles measured by the basic and pathological personality scales of the Millon Clinical Multiaxial Inventory (MCMI) and mood or symptom states measured by the Profile of Mood State scales were examined. The MCMI personality scale-POMS symptom/mood scale relationships found in this study are compared with MCMI personality scale-MMPI and SCL-90 symptom/mood scale relationships reported in the MCMI manual. Consistent associations of moderate strength were found between: (a) the MCMI Compulsive-Conforming and Passive-Aggressive (Negativistic) scales (negative and positive associations, respectively) and various measures of depression, anxiety and hostility: (b) the MCMI Avoidant, Schizotypal and Borderline-Cycloid scales and various measures of depression and anxiety; (c) the MCMI Schizoid-Asocial scale and various measures of depression; and (d) the Histrionic-Gregarious scale and various measures of high energy-activity. These MCMI personality scale-symptom/mood scale relationships are generally consistent both with the underlying theory of personality and psychopathology upon which the MCMI is based and with the personality-symptom scale relationships found within the MCMI.     

Retest reliability of the Millon Clinical Multiaxial Inventory

This article reports on two studies which examined the temporal stability of the personality disorder subscales from the Millon Clinical Multiaxial Inventory (MCMI). The scales demonstrated adequate stability in psychiatric inpatients (retested with an average of just over 1 year between testings). Furthermore, a separate sample of depressed inpatients assessed when depressed and 6 weeks later showed that the stability of MCMI personality scales was observed even after patients displayed an initial reduction in depression severity. Although stability is vital to the accurate assessment of personality disorders, both studies also found high retest correlations for the MCMI clinical syndrome subscales. In general, these results suggest that patients displayed similar symptom patterns over time, whether construed as personality traits or characteristic patterns of responding when symptomatic.     

Maximum likelihood estimates of the ability of the MMPI and MCMI personality disorder scales and the SIDP to identify personality disorders.

The ability of the Minnesota Multiphasic Personality Inventory (MMPI) and Millon Clinical Multiaxial Inventory (MCMI) personality disorder scales and the Structured Interview for DSM-III Personality Disorders (SIDP) to identify personality disorders was estimated statistically using 122 subjects. Each technique was reasonably accurate when various diagnoses were excluded, but they were quite variable in identifying members of specific diagnostic categories. The same general pattern was seen when the disorders were combined into three general diagnostic clusters. The techniques excluded cluster membership fairly well, although there was little agreement across techniques for identifying cluster membership. The MCMI, however, was moderately adept at identifying membership in all three clusters. It was suggested that these instruments should be used cautiously in clinical settings and that additional data on their performance be obtained.     

A response Consistency statistic for the millon clinical multiaxial inventory (MCMI)

Response style in objective psychological testing is an important issue in the reliability and validity of tests as well as in the interpretation of test results. The MCMI provides two response-style indices, the validity scale and the weight factor. The present work presents an additional statistic to assess random response in subjects. The Consistency Coefficient is the correlation between the subjects' endorsement of even and odd items across the 20 MCMI scales. The distributions of 500 patient and 500 randomly generated profiles were compared. Good separation between these distributions was found. The subject data were extremely negatively skewed, whereas the randomly generated data were normally distributed. Data are presented that display positive and negative predictive values, as well as sensitivity and specificity across ranges of prevalence and cut score. These data facilitate the identification of subjects who respond to the MCMI in a random manner so that their scores can be interpreted accordingly.     

Depression, anxiety, and the MCMI-III: construct validity and diagnostic efficiency

This study aimed to enhance knowledge of the construct validity and diagnostic efficiency of the depression- and anxiety-related scales of the MCMI-III (Millon, 1994). The MCMI-III, various concurrent depression and anxiety measures, and an Axis I structured diagnostic interview were administered in a total sample of 696 outpatients with depressive disorders, anxiety disorders, or both. Sound construct validity was found for the Dysthymia and Major Depression clinical syndrome scales and the Avoidant and Depressive personality disorder scales. The validity of the Anxiety scale was poor, showing moderate convergence with panic and worry-related anxiety measures, but problems discriminating from depression. Operating characteristics for discriminating depressed patients from anxious patients were fair for the Major Depression scale, but poor for the Anxiety and Dysthymia scales.     

Stability of the personality and symptom scales of the Millon Clinical Multiaxial Inventory

This study examines the stability of the basic and pathological personality and symptom scales of the Millon Clinical Multiaxial Inventory (MCMI) in three clinical samples. Consistent with the theory upon which the MCMI is based, higher stability estimates were found among basic personality scales in comparison with symptom scales. However, stability estimates which included initial MCMI administrations at intake into treatment were generally lower than those based upon administrations which occurred later in the treatment process. This later finding suggests the need to consider timing of administration when interpreting the MCMI.     

Millon Clinical Multiaxial Inventory (MCMI) scores with a collegiate sample: Long-term stability and self-other agreement

This study examined (a) the stability of the personality and symptom scales of the Millon Clinical Multiaxial Inventory (MCMI) for a sample of university undergraduates and (b) the correspondence between MCMI scores from self-report versus scores obtained from knowledgeable others who responded by describing the subject rather than themselves. The MCMI was administered to subjects during their freshman year and then again during their senior year. As in clinical populations, stability estimates in this collegiate sample were greater for the basic personality scales than for the symptom scales. Comparison of the results with those from previous studies further showed that the stability coefficients for the collegiate sample were somewhat lower overall than those from treatment follow-up studies with clinical populations. The results also showed that reasonable agreement between self- and others' ratings was obtained on most MCMI scales. The greatest agreement was found for scales that reflect more observable behaviors and relate to an introversion-extroversion dimension, whereas the least agreement was found for scales related to a psychoticism dimension. Lower levels of agreement were also found for scales having a lower mean proportion of items endorsed.This study was sponsored in part by PHS Grant R01 MH31750-01-6, by PHS Grant 5R01 AA06754-01-03, and by funds from the University of Connecticut Research Foundation and Computer Center.     

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In this study, we examined Millon Clinical Multiaxial Inventory–III (MCMI–III; Millon, 2009) characteristics in an Old Order Amish outpatient sample (n = 166), with a comparison group of Old Order Amish who were not receiving mental health treatment at the time of testing (n = 80). We also graphically compared the 2 Amish groups to a non-Amish psychiatric sample in the literature. Consistent with our hypotheses, the Old Order Amish outpatients scored significantly higher than the Old Order Amish comparison group on the majority of MCMI–III scales, with mostly medium effect sizes, suggesting that the MCMI–III is a useful personality instrument in discriminating between Old Order Amish clinical and nonclinical groups. In addition, the Amish outpatients scored similar to a non-Amish psychiatric sample in the literature on most personality scales. Future MCMI–III studies with the Amish are needed to replicate and generalize our findings.     

MCMI characteristics of DSM-III posttraumatic stress disorder in Vietnam veterans

Compared the MCMI profiles of 25 veterans with a diagnosis of Posttraumatic Stress Disorder (PTSD) with those of 25 veterans carrying psychiatric disorders which typically cause problems in the differential diagnosis of PTSD. The PTSD group had higher elevations on nine of the 20 MCMI scales (all ps less than .05). Profiles were also significantly different in shape and scatter. A discriminant analysis accounted for 100% of the variance and correctly classified 88% of the patients. Resulting MCMI profiles appear to be consistent with DSM-III criteria for PTSD.     

Stability of the Personality and Symptom Scales of the Millon Clinical Multiaxial Inventory

This study examines the stability of the basic and pathological personality and symptom scales of the Millon Clinical Multiaxial Inventory (MCMI) in three clinical samples. Consistent with the theory upon which the MCMI is based, higher stability estimates were found among basic personality scales in comparison with symptom scales. However, stability estimates which included initial MCMI administration at intake into retreatment were generally lower than those based upon administrations which occurred later in the treatment process. This later finding suggests the need to consider timing of administration when interpreting the MCMI.     

The Differential Responding of Male Prisoners to Subtle and Obvious MCMI Subscales

We investigated the differential responding of 100 male inmates to subtle and obvious MCMI scale items; subtlety was determined by judgments by college students. It has been predicted that item subtlety would be positively correlated with item endorsement. This prediction was supported across all 175 MCMI items. as well as across items on 7 of 8 personality and 8 of 12 clinical scales. It had also been predicted that education and intelligence would moderate the relationship between subtlety and endorsement, with inmates higher in education and intelligence demonstrating a greater tendency than other inmates to avoid obvious items. Modest support was obtained for this prediction, with statistically significant results found for 4 personality and 5 clinical scales. The significance of the subtle-obvious distinction is discussed, especially when employing the MCMI with an inmate population.     

The differential responding of male prisoners to subtle and obvious MCMI subscales.

We investigated the differential responding of 100 male inmates to subtle and obvious MCMI scale items; subtlety was determined by judgments by college students. It has been predicted that item subtlety would be positively correlated with item endorsement. This prediction was supported across all 175 MCMI items, as well as across items on 7 of 8 personality and 8 of 12 clinical scales. It had also been predicted that education and intelligence would moderate the relationship between subtlety and endorsement, with inmates higher in education and intelligence demonstrating a greater tendency than other inmates to avoid obvious items. Modest support was obtained for this prediction, with statistically significant results found for 4 personality and 5 clinical scales. The significance of the subtle-obvious distinction is discussed, especially when employing the MCMI with an inmate population.     

The stability of the Millon Clinical Multiaxial Inventory for psychiatric inpatients

This study investigated the stability of the personality and symptom scales of the Millon Clinical Multiaxial Inventory (MCMI) for a sample of psychiatric inpatients. Patients were administered the MCMI shortly following admission and shortly preceding discharge. As would be expected theoretically, results indicated that stability estimates were greater for the basic personality scales than for the symptom scales. These results were also compared with results from a previous study investigating the stability of MCMI scales. Overall, stability coefficients for the inpatient sample were lower than those reported for other samples. Possible explanations for this and other findings are discussed.     

Effects of client presenting syndromes on client and therapist dominance and affiliation during early sessions of Rational-Emotive psychotherapy

This is a study of effects of presenting clinical status on interpersonal presentation during early Rational-Emotive therapy (RET). Independent variables were intake scores for clients from the axis I scales of the Millon Clinical Multiaxial Inventory (MCMI; Millon, 1983). Dependent variables, from audiotapes of sessions at the Institute for RET (IRET), were Revised Interpersonal Adjective Scale (IAS-R; Wiggins, Trapnell and Phillips, 1988) ratings of clients and therapists. MCMI scales associated with stimulation seeking (N, hypomania; T, drug abuse) were significantly positively correlated with client dominance. Therapist affiliation was negatively correlated with all client MCMI scales, and these were significant for scales that assessed the most severe intake presenting problems (A, anxiety, D, dysthymia).