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 Millon'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.     

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.     

Muscularity concerns among men: development of attitudinal and perceptual measures

The current study reports the development and psychometrics of a figure rating scale with leanness and muscularity dimensions and a 13-item questionnaire assessing symptoms associated with muscle dysmorphia (MD). Three separate samples of men and women completed the muscle dysmorphic disorder inventory (MDDI), the bodybuilder image grid (BIG) or both to measure 1-week test–retest reliability, internal consistency, convergent and divergent validity and valid placement of BIG figures along interval scales of body fat and lean muscle mass. The MDDI and MDDI subscales (drive for size, appearance intolerance, and functional impairment) had good reliability, internal consistency, convergent and divergent validity. The BIG had good to excellent test–retest reliability, good convergent and divergent validity and validity as an interval scale. Implications for characterizing body image disturbance in men and benefits and limitations of the measures are discussed.     

The development of a smoking-specific locus of control scale

Abstract

A 32-item questionnaire was designed to measure multidimensional locus of control beliefs specifically about giving up smoking (SLC Scale), and administered along with the Multidimensional Health Locus of Control Scale (MHLC) and a short smoking information questionnaire to 211 smokers. Psychometric analyses of the SLC scales included a series of repeated factor and reliability analyses which resulted in a final three-factor solution, containing 11 of the original SLC items. The three factors represented the following types of locus of control for smoking: a combined Internal-Chance factor, a Significant Others factor, and a Powerful Others factor with Chronbach's alpha coefficients of internal reliability of 0.63, 0.56 and 0.55 respectively. Analyses relating to the reliability and validity of the SLC scale are presented and discussed. As expected the SLC correlated more sensibly and significantly with subjects' reported behaviour and intentions regarding giving up smoking than did the MHLC scales.     

Development and validation of a scale to measure beliefs about women managers

This paper presents preliminary evidence on the internal consistency and validity of a scale designed to measure the degree to which one believes women managers experience a greater number of obstacles and more critical judgments about their work performance as compared to managerial men (the Stereotype Beliefs about Women Managers scale; SBWMS). Survey data from 1,337 managerial and nonmanagerial men and women employed by a large manufacturing organization revealed that the 6-item scale possessed a single factor. Significant mean group differences and correlations between the SBWMS and a number of organizationallyrelevant measures provide good preliminary support for the scale’s validity.     

Development and validation of a scale to measure beliefs about women managers

This paper presents preliminary evidence on the internal consistency and validity of a scale designed to measure the degree to which one believes women managers experience a greater number of obstacles and more critical judgments about their work performance as compared to managerial men (the Stereotype Beliefs about Women Managers scale; SBWMS). Survey data from 1,337 managerial and nonmanagerial men and women employed by a large manufacturing organization revealed that the 6-item scale possessed a single factor. Significant mean group differences and correlations between the SBWMS and a number of organizationallyrelevant measures provide good preliminary support for the scale’s validity.     

A Psychometric Evaluation of the Chinese Version of the Students’ Life Satisfaction Scale

The present study reported the initial validation of an abbreviated version of the Students' Life Satisfaction Scale- Chinese version (SLSS-Chinese) in two samples of Chinese middle school students. Initial analyses based on the original 7-item scale suggested that the two reverse-worded items functioned differently compared to other items. The plausible reasons behind this finding were discussed based on extant literature on mixed worded scales and cross-cultural research on life satisfaction scales. Then we compared the validity of three formats of the SLSS-Chinese: the 7-item (full scale), the 5-item (positively worded items only), and the 2-item (reverseworded items only) scales, respectively. Convergent evidence suggested that the two reverse-worded items hampered the scale's internal consistency, dimensionality, and validity. Also, the 5-item scale demonstrated good psychometric properties, and was clearly superior compared to the 7-item scale. These findings provide a solid foundation for applying the 5-item SLSS-Chinese in measuring Chinese adolescents' life satisfaction.     

A re-evaluation of the psychometric properties of the Basic Character Inventory

The aim of this study was to re-evaluate the psychometric properties of the Basic Character Inventory (BCI). In a rather large sample of 503 subjects (323 women and 180 men, 88 non-psychotic psychiatric inpatients and 415 non-patients) factor analysis resulted in three factors with personality traits almost identical with the BCI Oral, Obsessive and Hysterical scales. BCI seems to be a fruitful and reliable assessment instrument for personality traits and character types as outlined in psychoanalytic theory. However, some of the trait subscales ought to be scrutinized in future psychometric re-evaluative studies of BCI on new, large samples. Another factor analysis showed that the BCI Oral scale, together with all the ten subscales of the psychiatric Symptom Check-list 90 (SCL-90), loaded on the first factor, and the BCI Obsessive and Hysterical scales loaded on the second factor, but with different signs. Orality seems to be related to psychopathology.     

Toward a Tripartite Model and Measurement of Proactive Personality

Although proactive personality (Bateman & Crant, 1993), as a relatively stable disposition to bring about change in one's environment, is a central construct in the management and organizational behavior literature, questions have arisen about its definition and structure. To answer these questions, we present a tripartite model of proactive personality consisting of 3 dimensions: perception (i.e., perceiving opportunities for change), implementation (i.e., planning and executing change), and perseverance (i.e., persisting until the change is realized). Exploratory factor analysis informed the construction of a 14-item scale, and confirmatory factor analyses supported the validity of the scale. The new scale demonstrated satisfactory reliability and accounted for significant variance in task performance above that of original proactive personality, personal initiative, conscientiousness, and social desirability. Tripartite proactive personality might provide a more nuanced view of dispositional proactivity and greater predictive power than the original unidimensional proactive personality.     

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.     

Retest Reliability of Scores on Objective and Projective Measures of Dependency: Relationship to Life Events and Interest Interval

The retest reliabilities of widely used objective and projective measures of dependency were assessed in a mixed-sex sample of undergraduates (54 women and 34 men). Subjects completed Hirschfeld and colleagues' (1977) Interpersonal Dependency Inventory (IDI) and Masling, Rabie, and Blondheim's (1967) Rorschach Oral Dependency (ROD) scale on two occasions separated by 16, 28, or 60 weeks. The IDI and ROD scale showed good retest reliability over 16 weeks in both men and women. However, the ROD scale did not show adequate retest reliability over longer periods in subjects of either sex. IDI scores showed excellent long-term retest reliability in women, but poor longterm retest reliability in men. Subjects' self-reports and impact ratings of life events experienced during the intertest period were unrelated To changes in subjects' IDI and ROD scale scores from Time 1 to Time 2, regardless of the intertest interval used.     

The Identity Consolidation Inventory (ICI): Development and Application of a Questionnaire for Assessing the Structuralization of Individual Identity

This paper describes the author's effort to develop a self-rating scale to measure the consolidation of identity in a given individual. It describes the construction of the 35-item Identity Consolidation Inventory (ICI) and, as an appendix to the paper, includes the final version of this questionnaire. The scale's reliability and validity are demonstrated via its administration to 238 normal controls, 80 individuals with Borderline Personality Disorder and 13 subjects with Dissociative Identity Disorder (“multiple personality”). The clinical and research usefulness of ICI lies in the realm of discerning the syndrome of identity diffusion that underlies all severe personality disorders.     

Correlations of MMPI Factor Scales With Measures of the Five Factor Model of Personality

Two recent item factor analyses of the Minnesota Multiphasic Personality Inventory (MMPI) classified the resulting factors according to a conceptual scheme offered by Norman's (1963) five factor model. The present article empirically evaluates those classifications by correlating MMPI factor scales with self-report and peer rating measures of the five factor model in a sample of 153 adult men and women. Both sets of predictions were generally supported, although MMPI factors derived in a normal sample showed closer correspondences with the five normal personality dimensions. MMPI factor scales were also correlated with 18 scales measuring specific traits within the broader domains of Neuroticism, Extraversion, and Openness. The nine Costa, Zonderman, McCrae, and Williams (1985) MMPI factor scales appear to give useful global assessments of four of the five factors; other instruments are needed to provide detailed information on more specific aspects of normal personality. The use of the five factor model in routine clinical assessment is discussed.     

Intra- and intercultural comparisons of the personality profiles of medical students in Argentina and the United States

This study was designed to compare the personality profiles of medical students in Argentina and the United States. The ultimate purpose of the research was to study the value of personality measures in predicting academic and professional performances. Participants were 421 medical students in Argentina (254 women, 167 men) and 623 medical students in the United States (207 women, 416 men). Eight personality measures were administered: Perception of Stressful Life Events, Test Anxiety, General Anxiety, Loneliness, Self-Esteem, Locus of Control, Extraversion, and Neuroticism. Intracultural comparisons showed some minor gender differences in personality profiles within each culture (e.g., in the United States, women scored higher than men on the Perception of Stressful Life Events and General Anxiety scales, and in Argentina, women scored higher on the Test Anxiety scale). Intercultural comparisons of personality profiles showed that Argentine medical students obtained higher average scores than did their American counterparts on the Perception of Stressful Life Events, Test Anxiety, General Anxiety, External Locus of Control, Extraversion, and Neuroticism scales. Argentine students scored lower on the Loneliness scale than did their American counterparts. Psychometric findings supported the measurement properties of the personality measures in the two cultures (e.g., construct validity, and internal consistency aspect of reliability). Further study of the implications of the findings in predicting academic attainment in medical school and to physician performance is recommended.     

On the invalidity of validity scales: evidence from self-reports and observer ratings in volunteer samples

Because of the potential for bias and error in questionnaire responding, many personality inventories include validity scales intended to correct biased scores or identify invalid protocols. The authors evaluated the utility of several types of validity scales in a volunteer sample of 72 men and 106 women who completed the Revised NEO Personality Inventory (NEO-PI-R; P. T. Costa & R. R. McCrae, 1992) and the Multidimensional Personality Questionnaire (MPQ; A. Tellegen, 1978/1982) and were rated by 2 acquaintances on the observer form of the NEO-PI-R. Analyses indicated that the validity indexes lacked utility in this sample. A partial replication (N = 1,728) also failed to find consistent support for the use of validity scales. The authors illustrate the use of informant ratings in assessing protocol validity and argue that psychological assessors should limit their use of validity scales and seek instead to improve the quality of personality assessments.