Expression and enzymic activity of ecto 5''-nucleotidase in the human male genital tract

The factor structure of the Millon Clinical Multiaxial Inventory (Millon, 1994; MCMI-III) was assessed among 444 African American inpatient substance abusers and constitutes the first factor analysis of the MCMI-III. We found 3 main factors: General Maladjustment, Paranoid Behavior/Thinking With Detached Emotionality, and Antisocial Acting Out. These factors were essentially similar to previous findings of factor studies with the MCMI and MCMI-II across diverse populations. This factor invariance should lend credibility to the revised test and spur additional research into its psychometric properties.     

A test of models of personality disorder configuration.

In this study, the authors examined the degrees to which various models of personality disorder (PD) configuration are consistent with the primary data sets from clinical and community samples reported in the recent literature. Factor analyses were conducted on PD intercorrelation matrices, and the loading matrices were rotated to maximum possible fit with target matrices representing the PD configuration models. There was little support for the interpersonal circle or other circular orderings of PDs, or for T. Millon's (1990, 1996) biosocial learning theory. There was moderate support for the Diagnostic and Statistical Manual of Mental Disorders (4th ed., DSM-IV; American Psychiatric Association, 1994) dimensions, for C. R. Cloninger's (1987) tridimensional theory, and for S. Torgersen and R. Alnaes's (1989) decision tree. There was consistent, stronger support for the 5-factor model (T. A. Widiger, T. J. Trull, J. F. Clarkin, C. Sanderson, & P. T. Costa, 1994) and for an empirically derived 7-factor model by C. R. Cloninger and D. M. Svrakic (1994). However, a focus on just 4 factors seems preferable and sufficient. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Examining the construct validity of the Eating Disorder Inventory.

The construct validity of the Eating Disorder Inventory (EDI) was examined in 3 samples. An archival clinic sample (n=318) of women completed the EDI, a structured interview, and the Millon Clinical Multiaxial Inventory--II (MCMI-II). Confirmatory factor analyses (CFAs) indicated that neither null nor 1-factor models of the EDI fit item-level or item-parcel data. The proposed 8-factor model did not fit at the item level but did fit item-parcel data. Reliability estimates of the 8 scales ranged from .82 to .93, and low-to-moderate interscale correlations among the eating and weight-related scales provided partial support for convergent validity. EDI personality scales showed moderate interscale correlations and were associated with MCMI-II scales. A final CFA of the EDI scales supported a 2-factor model (Eating and Weight, Personality) of the 8 EDI scales. Strong associations between depression and several EDI scale scores were found in a treatment study sample (n=50). The archival clinic sample scored significantly higher on the 8 EDI scales than the nonpatient college comparison sample (n=487). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

MCMI-III as a treatment outcome measure for psychiatric inpatients

The Million Clinical Multiaxial Inventory-III (MCMI-III) recently was introduced to replace and update the MCMI-II. A sample of 97 psychiatric inpatients were administered the MCMI-III shortly following admission, and again 7-10 days later. Changes in the personality and symptom scales generally paralleled those found in previous work with the MCMI-II, although the mean retest interval was considerably shorter than in the earlier study. However, some differences between the two instruments were observed, confirming the need for ongoing cross-validation work on the MCMI-III as an instrument that is distinct from the MCMI-II.     

Diagnostic validity statistics and the MCMI-III.

This article (a) describes and illustrates the nonredundant and clinically important information that may be obtained from 5 diagnostic validity statistics (DVSs): incremental validities of positive and negative test diagnoses, Cohen's kappas, Cohen's effect sizes, and areas under receiver operating characteristic (ROC) curves and (b) determines values of these DVSs for 24 Millon Multiaxial Clinical Inventory III scales from results reported in 1994 and 1997 validity studies. The DVSs for the 1997 study (T. Millon, R. Davis, & C. Millon, 1997) were often more than 3 times larger than corresponding DVSs for the 1994 study (T. Millon, 1994). The author suggests these large differences could reflect not only effects of factors that caused underestimation of validities by DVSs of the 1994 study, but also effects of factors that may have caused overestimation of validities by DVSs of the 1997 study. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A comparison of models of drinking motives in a university sample.

Previous research has suggested the presence of several alternative factorial models for the assessment of drinking motives. In the present study, confirmatory factor analysis was used to assess the factor structure of the Drinking Motives Questionnaire (M. L. Cooper, 1994) in a college sample. The results indicate that a 4-factor model that includes the dimensions of social rewards, affect enhancement, coping, and conformity motives fits the data significantly better than 2- and 3-factor models. Furthermore, the 4-factor model fits equally well for men and women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An evaluation of evaluative personality terms: A comparison of the Big Seven and Five-factor model in predicting psychopathology.

Two personality models are compared regarding their relationship with personality disorder (PD) symptom counts and with lifetime Axis I diagnoses. These models share 5 similar domains, and the Big 7 model also includes 2 domains assessing self-evaluation: positive and negative valence. The Big 7 model accounted for more variance in PDs than the 5-factor model, primarily because of the association of negative valence with most PDs. Although low-positive valence was associated with most Axis I diagnoses, the 5-factor model generally accounted for more variance in Axis I diagnoses than the Big 7 model. Some predicted associations between self-evaluation and psychopathology were not found, and unanticipated associations emerged. These findings are discussed regarding the utility of evaluative terms in clinical assessment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Toward a comprehensive assessment of fundamental motivation: Factor structure of the Reiss Profiles.

Two instruments were developed to provide a comprehensive assessment of the strength of a person's fundamental end goals and motivational sensitivities. One instrument was a self-report inventory for adolescents and adults in general, and the other was an informant-rating scale for adolescents and adults with mental retardation and development disabilities. Exploratory and confirmatory factor analyses and test-retest reliabilities are reported in 7 studies, with independent samples of participants from diverse geographical areas, occupations, and social groups, N?=?2,548. Each instrument was found to have a 15-factor solution, and the 2 solutions were similar to one another. Because the factors assess universal motives that are also seen in animals, a genetics-behavior-cognitive model of fundamental motivation is suggested. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Factor structure of the Hare Psychopathy Checklist: Youth Version (PCL: YV) in incarcerated adolescents.

Two studies are reported on the underlying dimensions of the psychopathy construct in adolescents as measured by the Hare Psychopathy Checklist-Youth Version (PCL: YV; Forth, Kosson, & Hare, 2003). In Study 1, the PCL: YV item ratings for 505 male adolescents incarcerated in 5 different settings in North America were used to test the fit of 3 models that have been hypothesized to represent the structure of psychopathy in adults. A 4th model based on parceling PCL: YV items was also tested. In Study 2, these models were tested with a sample of 233 male adolescents incarcerated in 2 facilities in the United Kingdom. Model fit results indicated that the 18-item 4-factor model developed by Hare (2003) and a modified version of a 13-item 3-factor model developed by Cooke and Michie (2001) were associated with generally good fit. Because the 4-factor model is a less saturated model than the 3-factor model (better parameter to data point ratio), it survived a riskier test of disconfirmation. Implications for the nature of psychopathy in youth are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A psychometric re-analysis of the Interaction with Disabled Persons Scale.

Drawing upon existing theory and research on attitudes to towards people with disabilities, L. Gething (1991) used Australian samples to develop the Interaction with Disabled Persons (IDP) Scale, which reflects 4 key attitude components (e.g., fear of becoming disabled). The IDP scale was used with a sample of 231 Canadian management undergraduates (aged 19-51 yrs) to examine the IDP scale's psychometric properties; to test Gething's (1994) 6-factor model; and to test D. MacLean and P. M. Gannon's (1995) 2-factor model using confirmatory factor analysis. Overall, the findings did not support the 6- or 2-factor models. There was poor to moderate internal consistency reliability for most scales, and small social desirability effects. Results show that further refinement to the IDP scale is required to improve its factor structure, internal consistency reliability, and to minimize correlations with social desirability. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The bilevel structure of the Outcome Questionnaire–45.

The structure of the Outcome Questionnaire–45 (Lambert et al., 2001) was examined in a sample of 1,100 university counseling center clients using confirmatory factor analysis. Specifically, the relative fit of 1-factor, 3-factor orthogonal, 3-factor oblique, 4-factor hierarchical, and 4-factor bilevel models were examined. Although the 3-factor oblique, 4-factor hierarchical, and 4-factor bilevel models fit the data well, the 4-factor bilevel model fit the data best. The results provided support for the fit of the 4-factor bilevel model where each item loads on 1 of the 3 independent scales of Symptom Distress, Social Role Performance, and Interpersonal Relations, in addition to a nonoverlapping general distress factor. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Testing a Four-Factor Model of Psychopathy and Its Association With Ethnicity, Gender, Intelligence, and Violence.

Although a 2-factor model has advanced research on the psychopathy construct, a 3-factor model was recently developed that emphasized pathological personality and eliminated antisocial behavior. However, dropping antisocial behavior from the psychopathy construct may not be advantageous. Using a large sample of psychiatric patients from the MacArthur Risk Assessment Study (J. Monahan & H. J. Steadman, 1994), the authors used confirmatory factor analysis to test a 4-factor model of psychopathy, which included interpersonal, affective, and behavioral impulsivity dimensions and an antisocial behavior dimension. Model fit was good for this 4-factor model, even when ethnicity, gender, and intelligence variables were included in the model. Structural equation modeling was used to compare the 3- and 4-factor models in predicting proximal (violence) and distal (intelligence) correlates of psychopathy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Validity of the Five-Factor Model Prototypes for Personality Disorders in Two Clinical Samples.

The authors examined the validity of D. R. Lynam and T. A. Widiger's (2001) prototypes for personality disorders (PDs) derived from the facets of the 5-factor model (FFM) of personality in 2 clinical samples. In the 1st sample (N = 94), there was good agreement between the prototypes generated by experts and the profiles reported by patients. These FFM PD similarity scores also demonstrated good convergent and discriminant validity with results from a semistructured interview and a self-report measure of Axis II pathology. In the 2nd sample (N = 132), the FFM PD similarity scores demonstrated excellent longitudinal stability and good predictive validity with regard to consensus ratings of PD features. The implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cross-cultural personality assessment in psychiatric populations: The NEO-PI—R in the People's Republic of China.

The Revised NEO Personality Inventory (NEO-PI—R) is a measure of the 5-factor model developed on volunteer samples in the United States. To examine its validity in a non-Western, psychiatric sample, an existing Chinese translation was modified for use in the People's Republic of China (PRC). The instrument was administered to 2,000 psychiatric in- and outpatients at 13 sites throughout the PRC. Internal consistency was low for some facet scales, but retest reliability was adequate and the hypothesized factor structure was clearly recovered. Correlations with age, California Psychological Inventory scales, and spouse ratings supported the validity of NEO-PI—R scales, and diagnostic subgroups showed meaningful personality profiles. The 5-factor model appears to be useful for the assessment of personality among Chinese psychiatric patients. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship between personality characteristics and postconcussion symptoms in a nonclinical sample.

Postconcussion symptoms are relatively common in the acute recovery period following mild traumatic brain injury. However, for a small subset of patients, self reported postconcussion symptoms continue long after injury. Many factors have been proposed to account for the presence of persistent postconcussion symptoms. The influence of personality traits has been proposed as one explanation. The purpose of this study was to examine the relation between postconcussion-like symptom reporting and personality traits in a sample of 96 healthy participants. Participants completed the British Columbia Postconcussion Symptom Inventory and the Millon Clinical Multiaxial Inventory III (MCMI–III). There was a strong positive relation between the majority of MCMI–III scales and postconcussion-like symptom reporting. Approximately half of the sample met the International Classification of Diseases-10 Criterion C symptoms for Postconcussional Syndrome. Compared with those participants who did not meet this criterion, the PCS group had significant elevations on the negativistic, depression, major depression, dysthymia, anxiety, dependent, sadistic, somatic, and borderline scales of the MCMI–III. These findings support the hypothesis that personality traits can play a contributing role in self reported postconcussion symptoms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rotter's internal-external scale: Confirmatory factor analysis and correlation with social desirability for alternative scale formats.

536 undergraduates completed alternative versions of Rotter's Internal–External Locus of Control Scale and the Marlowe-Crowne Social Desirability Scale. 178 Ss completed the scales in their original formats (forced-choice and true/false, respectively), and 358 Ss completed a Likert instrument that incorporated both measures. It was hypothesized (a) that J. F. Watson's (see record 1982-29470-001) 2-factor structure for the forced-choice scale and B. E. Collins's (see record 1974-25219-001) 4-factor structure for the Likert version would be confirmed and (b) that both scales would exhibit significant social desirability correlation. A restricted factor analysis of the data confirmed the reported factorial structures, but the variance explained by the factors was small, and there was evidence that the scale may be tapping a unitary construct. Correlation with social desirability was found for the Likert data but not for the forced-choice results. However, data indicate that there may be problems with the interpretation of results that were based on use of the Marlowe-Crowne scale. (54 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Millon Clinical Multiaxial Inventory Alcohol Abuse and Drug Abuse scales and the identification of substance-abuse patients.

This study investigated the effectiveness of the Millon Clinical Multiaxial Inventory Alcohol- and Drug-Abuse scales in identifying known alcohol and drug abusers in a sample of 561 adult psychiatric inpatients (408 women and 153 men). Only 43% of the alcoholics and 49% of the drug abusers were identified with the recommended base rate cutoff score of 75. False-positive rates were greater than 50% for each scale, and the scales had a significant positive intercorrelation. Although this study may have some limitations regarding how substance-abuse diagnoses were determined, these findings raise questions about the validity and clinical utility of these scales. Further studies of the item composition and effectiveness of these scales, as well as comparisons with other approaches to substance abuse assessment, are indicated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Broad-band dimensions of psychopathology: Factor scales for the Personality Inventory for Children.

Broad-band factor scales were constructed from a factor analysis of the 313 inventory items that comprise the 12 consecutive Personality Inventory for Children clinical-profile scales (Achievement through Social Skills). Consecutive analyses extracted 12-, 10-, 8-, and 6-factor solutions using data from a sample of 1,226 behaviorally disturbed children and adolescents. The 6-factor solution provided sufficiently robust item clusters to develop scales reflecting the following 4 dimensions: Undisciplined/Poor Self-Control, Social Incompetence, Internalization/Somatic Symptoms, and Cognitive Development. These scales, normed using the original standardization sample of 2,582 6–26 yr olds obtained coefficients of internal consistency of .81–.92 and average estimates of test–retest reliability across 3 samples of .82–.92. Investigation of the scales' validity demonstrated their ability to separate meaningfully 6 homogeneous samples: delinquent, hyperactive, cerebral-dysfunction, somatizing, retarded, and psychotic children. The similarity between these scales and the broad-band dimensions identified by other investigators is discussed. Efforts to improve factor-scale utility are noted. (26 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reliability and Validity of the Revised Children's Manifest Anxiety Scale in a French-Canadian Sample.

The aim of this study was to examine the reliability and validity of a French version of the Revised Children's Manifest Anxiety Scale (RCMAS). A sample of 2,666 school-age French-Canadian children completed the questionnaire. With regard to factor structure, the 5-factor model found in U.S. normative samples was confirmed. The internal consistency of the 5 scales and of the 2 global scales was good to excellent. Test-retest reliabilities after a 6-month period were also similar to those of the original version. Finally, the concurrent validity, assessed by a correlation with the State-Trait Anxiety Inventory for Children, was also found to be good. Results of the present study show that the French version of the RCMAS is a good instrument to assess anxiety in children. (PsycINFO Database Record (c) 2010 APA, all rights reserved)