Factor Structure of the MCMI Basic Personality Scales and Common-Item Artifact

The eight basic personality scales of the Millon Clinical Multiaxial inventory (MCMI) were derived from Millon's theory of personality, but the adequacy of the MCMI for measuring Millon's personality constructs has never been assessed. One major problem with using factor analysis to illuminate the structure of the MCMI personality scales is that artifactual structure may result from item overlap among the scales. To analyze this, item-overlap coefficients were factored and compared to the factor structures of five subject samples. For the eight basic personality scales, three factors emerged for the overlap matrix and each of the five sample matrices: Aloof-Social, Aggressive-Submissive, and Lability-Restraint. It was concluded that these three factors are inconsistent with Millon's theory and that they will be found artifactually across a wide variety of populations due to overlapping items.     

Development and Validation of an Adjective Check List to Assess the Millon Personality Types in a Normal Population

A 405-item experimental Personality Adjective Check List (PACL) was refined into a 153-item form to assess the personality types outlined by Millon (1969, 1981) in a normal population. Scale construction and validation followed a method outlined by Loevinger (1957, 1972). Nine scales were developed based on the responses of 459 men and women, one for each of Milton's eight basic personalities plus an Experimental scale measuring aspects of his three more severe types. Extensive reliability and validity analyses were conducted involving over 2,200 men and women from across the United States, including a factor analysis of scales. These revealed good internal consistency for each scale, good test-retest reliability over a 3-month period, adequate factor structure, and good convergent and discriminant validity based on self-report data. Results indicated that Millon's basic types exist in normal form much as they are postulated to exist as disorders. Research efforts focusing on Millon's theory as it applies to normals may bring a more complete understanding of the entire spectrum of personality.     

Overview and Current Status of the Millon Clinical Multiaxial Inventory

The MCMI (Millon, 1983a, 1987, 1994, 1997a) was developed to operationalize Millon's (1969/1983b) model of psychopathology and has been revised 2 times over the past 20 years to keep pace with changes in theory as well as the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994). Since its introduction in 1977, it has become one of the most widely used and researched clinical assessment instruments in history, generating over 500 articles and 6 books. It has been translated into several languages and is being used in cross-cultural research. This article presents a historical overview of the measure and summarizes its current status in the literature. I highlight Millon's original vision for the test, changes that have been made, and its strengths and limitations. Future refinement of the MCMI is already in the planning stages and includes trait subscales for the personality disorders and linking codetypes to theory-derived interventions.     

Adult Attachment and Developmental Personality Styles: An Empirical Study

The current study was designed to test specific hypotheses associated with W. J. Lyddon and A. Sherry's (2001) attachment theory model of developmental personality styles. More specifically, 4 adult attachment dimensions were correlated with 10 personality scales on the Millon Clinical Multiaxial Inventory‐III (T. Millon, R. Davis, & C. Millon, 1997) with a sample of 273 men and women. Findings indicated that the adult attachment dimensions were able to predict 7 of the 10 personality styles.     

Theodore Millon's Contributions to Conceptualizing Personality Disorders

We review Theodore Millon's contributions to conceptualizing personality disorders in contemporary clinical science and practice. Millon worked tirelessly across professional domains and theoretical orientations, developing a rich integrative theory of personality and its pathology, directly and indirectly impacting the evolving iterations of the Diagnostic and Statistical Manual of Mental Disorders (DSM–III through DSM–5), and advocating for the personality disorders through his contributions to cofounding the International Society for the Study of Personality Disorders and the Journal of Personality Disorders. We conclude with a closer look at Millon's final major contributions to conceptualizing personality disorders as well as the strengths and limitations of his approach.     

Effects of Theodore Millon's Teaching,Mentorship, Theory,and Scientific Contributions on Health Psychology and Behavioral Medicine Research and Practice

This article summarizes the impact of Theodore Millon's work on the disciplines of health psychology and behavioral medicine over the past 5 decades spanning from the late 1960s to present. The article is written from my perspectives as a graduate student mentored by Millon on through my faculty career as a collaborator in test construction and empirical validation research. Several of the most recent entries in this summary reflect projects that were ongoing at the time of his passing, revealing the innovation and visionary spirit that he demonstrated up until the end of his life. Considering that this summary is restricted to Millon's contributions to the disciplines of health psychology and behavioral medicine, this work comprises only a small portion of his larger contribution to the field of psychology and the areas of personality theory and psychological assessment more broadly.     

The Validity of the PAT in the Selection of Tabulating Machine Operators: An Analysis of Predictive Power

For the past 4 decades Theodore Millon has provided the field with a series of articles and books that illustrate his unprecedented effort to build a unified science of personology and psychopathology. Especially significant is the nonreductionist synthesis of personology with universal principles grounded in the concept of evolution. His theoretically derived personality disorder prototypes are most unusual in that they correspond in almost all regards to the official Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) Axis II classification schema. In this article, I summarize major elements of Millon's model, past and present, including the personality disorder types and stages of personality development. Perhaps best known to the readers of Journal of Personality Assessment is his publication of several objective diagnostic instruments (e.g., Millon Clinical Multiaxial Inventory-III; Millon, Millon, &; Davis, 1994; Millon Adolescent Clinical Inventory; Millon, Millon, &; Davis, 1993). Most recent is the construction of a clinician-rated checklist (Millon Personality Disorder Checklist; Millon, 1997) of structural and functional forms of psychic pathology. I touch on these measures as well as his very recent framework of personality-guided, synergistic treatment for both Axis I syndromes and Axis II disorders.     

Three Approaches to Interpersonal Behavior and Their Common Factors

This study examined the factor dimensions common to three different approaches to interpersonal behavior- the interpersonal circle, Millon's theory of personality, and a factor analytic (FA) approach. These were compared with the Norman (1963) "Big Five" factors. Measures employed were the revised Wiggins (1979) Interpersonal Adjective Scales, Strack's Personality Adjective Check List (1990), and the short form of the Lorr (1986) Interpersonal Style Inventory. Subjects were 146 college students (83 men and 63 women). A principal components analysis with varimax rotation revealed four distinct factors, based on a scree test, that accounted for 55.4% of the variance: Dominance-Submission, Extraversion-Introversion, Conscientiousness, and Agreeable-Disagreeable. Each of the models measured the circumplex axes of dominance and affiliation, but only the Millon (1969/1983) and FA approaches measured more than these elements, with the FA paradigm most sufficiently addressing all four. Dominance-Submission, the largest factor, was not explicit in the Big Five. Results suggest that earlier studies isolating five factors of personality may not have adequately represented this dimension.     

Evolution of Millon's Personality Prototypes

In 1969, Millon proposed 8 personality prototypes that could be conceptualized at lower levels of severity than the level of the personality disorders. These personalities were fit into a theoretical system that emphasized the strength of the interpersonal attachment and the mode of accommodation. Disorders such as schizophrenia and depression were pictured as a decompensation of the basic personality. This article traces the evolution of Millon's theory from the original inception, through the influence of the 3rd and 4th editions of the Diagnostic and Statistical Manual of Mental Disorders, and onto its present form. Now visualized as resulting from 3 polarities, the model has expanded the number of personalities to include 3 additional prototypes.     

Theoretical application of holland's theory to individual decision‐making styles: implications for career counselors

Career decision making is an important aspect of career choice and career development. This theoretical article explores the relationship between J. L. Holland's (1997) 6 dimensions of personality and individual decision‐making styles. Implications for career counselors are also provided.     

Personality and job stress: a comparison of direct effects on parenting

The impact of personality and job characteristics on parental rearing styles was compared in 353 employees. Hypotheses concerning the relationships between personality and job variables were formulated in accordance with findings in past research and the Belsky's model (1984). Structural equation nested models showed that Aggression-hostility, Sociability and job Demand were predictive of Rejection and Emotional Warmth parenting styles, providing support for some of the hypothesized relationships. The findings suggest a well-balanced association of personality variables with both parenting styles: Aggression-Hostility was positively related to Rejection and negatively to Emotional Warmth, whereas Sociability was positively related to Emotional Warmth and negatively related to Rejection. Personality dimensions explained a higher amount of variance in observed parenting styles. However, a model that considered both, personality and job dimensions as antecedent variables of parenting was the best representation of observed data, as both systems play a role in the prediction of parenting behavior.     

Dimensions of Normal and Abnormal Personality: Elucidating DSM‐IV Personality Disorder Symptoms in Adolescents

ABSTRACT The present study aimed to elucidate dimensions of normal and abnormal personality underlying DSM‐IV personality disorder (PD) symptoms in 168 adolescents referred to mental health services. Dimensions derived from the Big Five of normal personality and from Livesley's (2006) conceptualization of personality pathology were regressed on interview‐based DSM‐IV PD symptom counts. When examined independently, both models demonstrated significant levels of predictive power at the higher order level. However, when added to the higher order Big Five dimensions, Livesley's higher and lower order dimensions afforded a supplementary contribution to the understanding of dysfunctional characteristics of adolescent PDs. In addition, they contributed to a better differentiation between adolescent PDs. The present findings suggest that adolescent PDs are more than extreme, maladaptive variants of higher order normal personality traits. Adolescent PDs seem to encompass characteristics that may be more completely covered by dimensions of abnormal personality. Developmental issues and implications of the findings are discussed.     

Developmental Personality Styles: An Attachment Theory Conceptualization of Personality Disorders

Attachment theory, as a developmentally based theory of personality formation, provides a viable framework for understanding the development and maintenance of personality disorders, or what A. E. Ivey and M. B. Ivey (1998) have referred to as “developmental personality styles.” Using K. Bartholomew's (1990) 4‐dimensional model of adult attachment as an organizational framework, 10 developmental personality styles are differentiated regarding their unique attachment experiences, working models of self and other, and feedforward beliefs. Implications of an attachment theory framework for counseling clients with problematic developmental personality styles are discussed.     

A Boston Yankee: Paul M. Lerner and the Heart of Assessment

In this article, I review the contributions of Paul M. Lerner to the theory and practice of personality assessment. I contrast Lerner's clinical approach with a narrow empirical approach along several dimensions. I explicate Lerner's experiential-psychoanalytic method. I draw attention to the patient's subjective experience as the nexus for interpretation and to the centrality of the patient–examiner relationship in the conduct of assessment.     

Personality Types and Vocational Choice: A Test of Holland's Theory

In order to test the adequacy of Holland's theory of vocational choice with reference to a broad segment of entering college students, a sample of the freshman class entering the Pennsylvania State University evaluated themselves in terms of the six personality styles of Holland's theory. Relationships between the personality styles and vocational choices were studied for groups of Decided, Tentative, and Undecided students. While several inversions in the data are evident, the data possess sufficient consistency to indicate that the personality identifications these students made in Holland's frame of reference were related to their initial vocational choices.     

Shared Meaning and the Convergence among Observers' Personality Descriptions

ABSTRACT “Shared meaning” is a parameter in Kenny's (1991) rater agreement model concerning the extent to which two raters agree about the trait-implicative meaning of the observations they have made of a target. In the first study, 201 individuals rated observations relevant to friendliness and organization on the meaning dimensions of typicality, difficulty level, and evaluation. They also rated 25 targets on the two constructs. We found strong support for a modest relation between the similarity of meaning ratings and the similarity of target ratings, especially for raw, as opposed to standard score, ratings. In Study 2 we considered shared meaning in a version of Kenny's model that included the consistency and communication parameters. Judge pairs (N= 110) evaluated two targets described by play and openness on several personality dimensions. Shared meaning significantly contributed to rating agreement for both targets, but consistency and communication, as manipulated in this study, did not. Implications of employing the broader consensus model in experimental studies are discussed. If I say “sorrow,” you'll know exactly what I mean only if you've experienced it in the same sense I have. -Joel Peterson, Ravenswood's Winemaker, in Darlington (1991)     

Thinking styles and the five‐factor model of personality

The primary aim of this study was to investigate the relationships between thinking styles and the big five personality dimensions. Four hundred and eight (149 males, 259 females) university students from Shanghai, mainland China, responded to the Thinking Styles Inventory and the NEO Five‐Factor Inventory. It was found that thinking styles and personality dimensions overlap to a degree. As predicted, the more creativity‐generating and more complex thinking styles were related to the extraversion and openness personality dimensions, and the more norm‐favouring and simplistic thinking styles were related to neuroticism. No specific pattern was identified in the relationships of thinking styles to the agreeableness and conscientiousness dimensions. Copyright © 2001 John Wiley & Sons, Ltd.     

Exploration as a predictor of congruence in adolescents' career choices

The purpose of this study was to test the hypothesis that adolescents who explore a variety of career alternatives will make career choices that are more congruent with their personality styles than will adolescents who explore less broadly. The sample of 57 female and 45 male high school seniors (mean age = 17.6 years) completed an ego identity interview, from which each occupation they reported considering was coded for four dimensions: occupational prestige, substantive complexity, interest environment, and gender dominance. Participants also completed the Strong-Campbell Interest Inventory and a verbal ability measure. Two indices were constructed to assess the degree of congruence between the adolescent's primary career choice and personality style. Regression analyses indicated that breadth of exploration in the four career dimensions, particularly in gender dominance exploration, was predictive of congruence for males and females.     

International Adaptations of the Millon Clinical Multiaxial Inventory: Construct Validity and Clinical Applications

This article examines the influence of the Millon Clinical Multiaxial Inventory (MCMI) as a clinical and research instrument beyond the borders of the United States. The MCMI's theoretical and empirical grounding, its alignment with the Diagnostic and Statistical Manual of Mental Disorders (DSM), and scales that can be interpreted both categorically and dimensionally, are the primary features that make the test attractive. We begin with studies that evaluated the construct equivalence of the different language adaptations. Data from the most widely researched non English-language forms (Danish, Dutch, and Spanish) show excellent comparability with Millon's original. Nevertheless, significant problems were noted in efforts to create clinical groups that would allow for equivalence of diagnostic accuracy when using the cutoff scores. Although dimensional aspects of the scale scores were not affected by this, the adapted measures might show attenuated diagnostic accuracy compared with Millon's original. Next, we present MCMI studies conducted in clinical settings to document where the adapted tests have made their greatest impact in the international literature. A wide variety of clinical applications demonstrated broad utility, and given the high number of issues addressed, we think Millon's influence will certainly stand the test of time in different domains and settings.