The comparative validity of MCMI-II and MMPI-2 personality disorder scales with forensic examinees.

This study demonstrated the convergent and discriminant validity of the MMPI-2 and MCMI-II personality disorder scales with forensic examinees. Based on averaged correlational data, the scales performed comparably with previous findings in psychiatric samples. Furthermore, the scales demonstrated increased convergent correlations. Improved convergence was obtained for the Antisocial, Sadistic, Borderline, Schizotypal and Paranoid scales. Decreased convergence on the Dependent and Avoidant scales was also obtained.     

Subtle-obvious scales of the MMPI: indicators of profile validity in a psychiatric population.

This study explored the usefulness of the Minnesota Multiphasic Personality Inventory (MMPI) Subtle-Obvious scales as profile validity indicators with a inpatient psychiatric population. Some 292 MMPI profiles were utilized and divided into overreporters, underreporters, and standard reporters, based on their Subtle-Obvious scale scores. Reporting style was shown to be unrelated to actual patient pathology because of the lack of relationship between reporting style and diagnostic categorization according to the Diagnostic and Statistical Manual of Mental Disorders (3rd ed., rev. [DSM-III-R]; American Psychiatric Association, 1987) Axis I and II. Comparisons of MMPI profiles of the three groups revealed that overreporters endorsed more pathology on the MMPI clinical scales than did either underreporters or standard reporters. The same pattern of response style was demonstrated by subjects on another objective measure, the Beck Depression Inventory, whereas on a projective measure, the Rorschach Inkblot Test, there were no differences between groups. These findings suggest that clinicians may want to utilize the Subtle-Obvious scales to gain information about MMPI profile validity. Specifically, profiles of patients identified as overreporters should be interpreted with caution so as to not overstate their level of pathology.     

Response style and the revised NEO personality inventory: validity scales and spousal ratings in a Chinese psychiatric sample

The effects of response style bias on profile scores from the family of NEO scales and the resultant influence of response style on the predictive capacity of these scales continues to be debated. In this study, a large sample of Chinese psychiatric patients were categorized into four response style groups based on their scores from recently developed "validity" scales for the revised NEO Personality Inventory (NEO PI-R). Mean differences and correlations between self-report and spousal ratings of these patients were examined for the NEO PI-R domain and facet scales. Excessive positive self-presentation bias resulted in mean differences between the self-report and spousal ratings for N and E. Correlations between self-report and spousal ratings were reduced in patients engaging in positive self-presentational bias compared to those who were not so categorized on three of the five NEO PI-R scales. However, these results were manifest only in a sub-sample of psychotic patients. Negative self-presentational bias did not affect mean differences or diminish the correlations between the self-report and spousal ratings.     

Factor analysis of MCMI-II and PACL basic personality scales in a college sample

This study examined factor dimensions common to the eight basic personality scales of the Millon Clinical Multiaxial Inventory-II (MCMI-II; Millon, 1987) and Personality Adjective Check List (PACL; Strack, 1987, 1990). Subjects were 140 college students (65 men and 75 women). MCMI-II weighted raw scores (WRS) and WRS corrected for number of items endorsed true by regression were employed for analysis along with PACL T-scores. Principal components analyses with varimax and direct oblimin rotations were carried out separately on the two sets of MCMI-II and PACL scores. MCMI-II and PACL scales measuring the same personalities were usually correlated most highly with each other, although some divergences were noted. WRS yielded three bipolar dimensions and a fourth unipolar method factor that loaded only the five MCMI-II scales that were strongly correlated with number of items endorsed true. Residual scores yielded a more meaningful set of three bipolar dimensions labeled Social Introversion-Extraversion, Emotionality-Restraint, and Social Dominance-Submissiveness, without the method factor, that were very similar to personality dimensions found separately in the two tests. More research is needed to clarify the response bias issue in the MCMI-II and to further explicate similarities and differences between the MCMI-II and the PACL.     

MCMI-II Scoring: Weighted and Unweighted Algorithms

This brief report examines the relationship between the scale scores derived through weighted and unweighted item scoring on the Millon Clinical Multiaxial Inventory-II (MCMI-II). The inventories of 356 subjects across three Samples were scored using weighted and unweighted algorithms. Correlations between the weighted and unweighted MCMI-II scales were found to approach unity. This casts doubt on whether the weighting system has substantial effect on the profiles that are generated or on reducing interscale correlations.     

Two promising shame and guilt scales: a construct validity comparison

This study compared the validity of two promising measures of shame and guilt proneness: revisions of the Harder Personal Feelings Questionnaire (PFQ2; Harder & Lewis, 1987) and the Hoblitzelle Adapted Shame and Guilt Scale (ASGS; Hoblitzelle, 1982). Internal consistency, test-retest stability, factor structure, and construct validity with convergent and discriminant personality dimensions were examined for both scales. In addition to the shame and guilt measures, 63 (37 male, 26 female) mostly freshman college students completed a randomly ordered battery of personality scales theoretically relevant to shame and guilt proneness. Results support the reliability and shame/guilt factor structure of each scale. ASGS Shame correlations appeared marginally more valid with 11 external construct variables than PFQ2 Shame, whereas PFQ2 Guilt was clearly more valid than its corresponding ASGS subscale. New, potentially improved scales were constructed from the factor analyses and from item analyses. However, the resulting scales did not show improved validity.     

Criterion-related validity of sex-restrictive and unisex interest scales: A comparison

This report describes two studies comparing the criterion-related validity of sex-balanced (“unisex”) interest inventory scales, i.e., scales designed such that the distributions of scores are similar for males and females, and traditional, sex-restrictive scales. Approximately 1600 college-bound high school seniors (Study 1) and 2000 college seniors (Study 2) completed both the ACT Interest Inventory (ACT-IV) and the new Unisex Edition of the ACT-IV (UNIACT), which contains sex-balanced items. In both studies, each participant was placed in one of six criterion groups based on the correspondence of expressed occupational choice (Study 1) and actual college major (Study 2) to Holland types. Comparable levels of criterion-related validity were obtained with the unisex scales, sex-restrictive scales, and with sex-balanced scores obtained by the traditional procedure of using same-sex norms. Study results and the results of previous research indicate that (a) psychometrically sound interest inventories can be constructed with sex-balanced items, and (b) counselors may use inventories which provide sex-balanced score reports without sacrificing validity.     

Research validity scales for the NEO-PI-R: development and initial validation

The purpose of this investigation was to develop a set of research validity scales for use with the NEO Personality Inventory-Revised (NEO-PI-R; Costa & McCrae, 1992b). In study 1 we used the existing NEO-PI-R item pool to select items for three validity scales: positive presentation management, negative presentation management, and inconsistency. Several iterative item and scale analyses were conducted, using multiple criteria for item selection. These analyses resulted in 10-item scales. In Study 2, the internal consistency, interscale relationships, and normative characteristics were examined in a separate sample of working adults. In Study 3, the validity of the scales was examined by contrasting five sets of NEO-PI-R protocols: from a separate sample of working adults, from a sample of 100 NEO-PI-R protocols with randomly produced responses, and from three samples of undergraduates completing the NEO-PI-R under different instructional sets. Analyses revealed that both the research validity scales and the NEO-PI-R domain scales were sensitive to group differences. issues relating to the appropriate use of the scales are discussed.     

Bifactor and item response theory analyses of interviewer report scales of cognitive impairment in schizophrenia

A psychometric analysis of 2 interview-based measures of cognitive deficits was conducted: the 21-item Clinical Global Impression of Cognition in Schizophrenia (CGI-CogS; Ventura et al., 2008), and the 20-item Schizophrenia Cognition Rating Scale (SCoRS; Keefe et al., 2006), which were administered on 2 occasions to a sample of people with schizophrenia. Traditional psychometrics, bifactor analysis, and item response theory methods were used to explore item functioning and dimensionality and to compare instruments. Despite containing similar item content, responses to the CGI-CogS demonstrated superior psychometric properties (e.g., higher item intercorrelations, better spread of ratings across response categories) relative to the SCoRS. The authors argue that these differences arise mainly from the differential use of prompts and how the items are phrased and scored. Bifactor analysis demonstrated that although both measures capture a broad range of cognitive functioning (e.g., working memory, social cognition), the common variance on each is overwhelmingly explained by a single general factor. Item response theory analyses of the combined pool of 41 items showed that measurement precision is peaked in the mild to moderate range of cognitive impairment. Finally, simulated adaptive testing revealed that only about 10 to 12 items are necessary to achieve latent trait level estimates with reasonably small standard errors for most individuals. This suggests that these interview-based measures of cognitive deficits could be shortened without loss of measurement precision.     

Convergent validity of the MCMI-III personality disorder scales and the MMPI-2 scales

The MCMI-III personality disorder scales (Millon, 1994) were empirically validated in a sample of prisoners, psychiatric inpatients, and outpatients (N = 477). The scale intercorrelations were congruent with those obtained by Millon, Davis, and Millon (1997). We conclude that our Flemish/Dutch version shows no significant differences with the original version of the MCMI-III as far as intercorrelations are concerned. Convergent validity of the MCMI-III personality disorder scales was evaluated by the correlational data between the MCMI-III personality disorder scales and the MMPI-2 clinical (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) and personality disorder (Somwaru & Ben-Porath, 1995) scales. Improved convergence was obtained compared with previous versions of the MCMI-I. Only the compulsive MCMI-III personality disorder scale remains problematic. The scale even showed negative correlations with some of the related clinical scales and with the corresponding personality disorder scales of the MMPI-2.     

Sex and gender bias in self-report personality disorder inventories: item analysis of the MCMI-II, MMPI, and PDQ-R

There has been considerable controversy and research regarding sex bias in the diagnosis of personality disorders, but little has involved self-report inventories. Thus this study investigated items from the Millon Clinical Multiaxial Inventory-II (Millon, 1987), the Minnesota Multiphasic Personality Inventory (Morey, Waugh, & Blashfield, 1985), and the Personality Diagnostic Questionnaire-Revised (Hyler & Rieder, 1987). Subjects (N = 189) completed the Histrionic, Dependent, Antisocial, and Narcissistic scales from these inventories, along with the Bem Sex Role Inventory (Bem, 1974) and the Symptom Checklist-90-Revised (Derogatis, 1977). Items were considered to evidence sex or gender bias if they (a) failed to correlate with dysfunction and (b) exhibited sex or gender role differences. At least 13 items evidenced sex bias (76 items using a more liberal threshold). The majority were from Narcissistic scales; few Histrionic items evidenced sex or gender bias. Implications with respect to sex-bias assessment and item construction are discussed.     

Basic Personality Inventory clinical and validity scales: Stability and internal consistency

A sample of 71 incarcerated adult male inmates was used to investigate the stability and internal consistency for the clinical and validity scales of the Basic Personality Inventoiy. One month test-retest stability coefficients for the clinical scales ranged from .53 to .77. KR-20 reliabilities ranged from .61 to .86 on each occasion. With the exception of the longer perseveration scales, stability was also reasonable for the validity scales. Overall, the Basic Personality Inventory clinical and validity scales demonstrated favorable stability and reliability in an inmate population.This research was supported by a STEP grant from the Alberta Government. Portions of this paper were presented at the Psychologists Association of Alberta's annual meeting, April 8, 1989, Calgary, Alberta. We gratefully acknowledge M. R. Sass and M. Wcinrath for their support.     

MCMI-II scoring: weighted and unweighted algorithms

This brief report examines the relationship between the scale scores derived through weighted and unweighted item scoring on the Millon Clinical Multiaxial Inventory-II (MCMI-II). The inventories of 356 subjects across three samples were scored using weighted and unweighted algorithms. Correlations between the weighted and unweighted MCMI-II scales were found to approach unity. This casts doubt on whether the weighting system has substantial effect on the profiles that are generated or on reducing interscale correlations.     

The new MAACL scales with adolescents: preliminary reliability and validity determinations

This study reports on the reliability and concurrent validity of both the trait and state forms of the Multiple Affect Adjective Check List (MAACL) with a high school population, age range of 14-16 years and educational range of 9th and 10th grades (N = 403). Alphas of the four scales (anxiety, depression, hostility, and positive affect) ranged from .67 to .91. Correlations with a check-list of stress-related symptoms and an inventory of the number of extracurricular activities in which the students participated were significant and in the expected direction. Means and standard deviations on the MAACL scales were similar to those of college students. Sex differences were found on some of the scales. The findings indicate that the MAACL is sufficiently reliable and valid to warrant additional use with an adolescent population.     

Rater bias in the EASI temperament scales: a twin study

Under trait theory, ratings may be modeled as a function of the temperament of the child and the bias of the rater. Two linear structural equation models are described, one for mutual self- and partner ratings, and one for multiple ratings of related individuals. Application of the first model to EASI temperament data collected from spouses rating each other shows moderate agreement between raters and little rating bias. Spouse pairs agree moderately when rating their twin children, but there is significantly rater bias, with greater bias for monozygotic than for dizygotic twins. MLE's of heritability are approximately .5 for all temperament scales with no common environmental variance. Results are discussed with reference to trait validity, the person-situation debate, halo effects, and stereotyping. Questionnaire development using ratings on family members permits increased rater agreement and reduced rater bias.