Consistency of Response to Personality Inventory Items as a Function of Length of Interval Between Test and Retest

Summary

Four member discussion groups (N = 80 male and female college students) were set up in which two members favored each side of the issue. In half the groups, the involvement of the members in the issue under discussion was relatively high; in the other half it was relatively low. While the potential for intragroup tension was greater in the high involvement group, this threat was successfully dealt with by a significantly larger number of tension reducing statements and statements deflecting hostility towards objects outside the group. These defensive maneuvers were particularly marked for one of the two discussion topics which appeared to be intrinsically more involving.     

Readability of Three Adult Personality Tests: Basic Personality Inventory,Jackson Personality Inventory,and Personality Research Form-E

Three personality tests, the Basic Personality Inventory (BPI), the Jackson Personality Inventory (JPI), and the Personality Research Form-E (PRF-E) were evaluated for readability using a number of indices. Sentence length, word length, sentence type, and four readability formulas indicated that the readability of the BPI, JPI, and PRF-E would not impede the administration or interpretation of these tests in broad segments of the population.     

No evidence for a General Factor of Personality in the HEXACO Personality Inventory

There have been an increasing number of articles that have speculated on the existence of a General Factor of Personality (GFP) similar to ‘g’ in intelligence research. In this study, I provide evidence that this general factor may be an artifact of the personality instrument used. Specifically, in two samples I show that depending on the type of analysis used there is either no evidence for a GFP in the HEXACO Personality Inventory or the GFP is found to be uncorrelated to GFPs based on Big Five or FFM instruments.     

The Millon Adolescent Personality Inventory and the Millon Adolescent Clinical Inventory

The theoretical grounds, purposes, and features of the Millon Adolescent Personality Inventory (MAPI; Millon, Green, & Meagher, 1982) and its forthcoming replacement the Millon Adolescent Clinical Inventory (MACI; Millon, in press) are reviewed. The rationale and procedure for the construction of the component scales are briefly explained, and the logic of configural or profile interpretation is examined and recommended. Uses and limitations of the MAPI and MAC1 are considered. Evaluative research, although limited in scope, points to the general utility of the MAPI and MACI as clinical tools, and to areas where further study may enhance their applicability in a counseling context.     

The Theory and Construction of the Personality Inventory

ABSTRACT

Does mimicking affect the way you think about yourself in relation to other people? In the present study, we instructed participants to either mimic or not mimic the expressions of their interaction partner. After a 3-minute interaction, participants' self-view in relation to others was measured. Results revealed that mimickers defined themselves more in relation to others than nonmimickers. Thus, mimicking others, compared to not mimicking others, changes your self-view.     

Evaluation of Potential Kidney Donors with the Personality Assessment Inventory: Normative Data for a Unique Population

Many transplant centers require personality assessment and/or psychiatric clearance prior to allowing an individual to donate a kidney. This is a unique cohort for personality assessment, and there is no normative information available for this population on standardized self-report measures such as the Personality Assessment Inventory (PAI). We evaluated a prospective sample of 434 kidney donor candidates with development of normative T-scores relevant to this specific comparison group. Compared to the original normative group from the PAI manual, potential kidney donors are 5–7 T-score points above the mean on PIM, RXR, DOM, and WRM and 4–6 points below the mean on the majority of the remaining scales. Raw score/T score conversion tables are provided. The normative data provided here is meant to supplement the original normative information and aid psychologists in evaluation of this unique medical population.     

Psychometric Properties of the HEXACO Personality Inventory

We introduce a personality inventory designed to measure six major dimensions of personality derived from lexical studies of personality structure. The HEXACO Personality Inventory (HEXACO-PI) consists of 24 facet-level personality trait scales that define the six personality factors named Honesty-Humility (H), Emotionality (E), Extraversion (X), Agreeableness (A), Conscientiousness (C), and Openness to Experience (O). In this validation study involving a sample of over 400 respondents, all HEXACO-PI scales showed high internal consistency reliabilities, conformed to the hypothesized six-factor structure, and showed adequate convergent validities with external variables. The HEXACO factor space, and the rotations of factors within that space, are discussed with reference to J. S. Wiggins' work on the circumplex.     

Subdimensional Structure of the Hogan Personality Inventory

This study examined the subdimensional structure of the Hogan Personality Inventory (HPI). A sample of 200 Spanish applicants completed the HPI as a requirement of a selection process for several jobs at a large international company. Exploratory factor analyses were conducted with the homogenous item composites (HIC) included in the HPI. Globally, the results indicated that the Big Five are divided into 13 subdimensions, which explained the variance of the HICs. Based on these results, we suggest that the HPI can be described as a personality inventory consisting of a hierarchical structure of three levels (Big Five – subdimensions – HICs).     

Item format and the structure of the Eysenck Personality Inventory: a replication

A seven-choice response format for personality inventories allows finer distinctions by subjects than the traditional two-choice format. The Eysenck Personality Inventory was employed in the present study to test the hypothesis that use of the expanded format would result in a clearer indication of test structure. A principal components analysis with a varimax rotation retained two components for the two-choice format, clearly identifiable as Eysenck's "Neuroticism" and "Extraversion" which accounted for 16% of the variance. The expanded format retained four components accounting for 28% of the variance.     

Construct validity of the Psychopathic Personality Inventory in a correctional sample

The relations between the Psychopathic Personality Inventory (PPI; Lilienfeld & Andrews, 1996) and 4 theoretically related constructs (empathy, aggression, work ethic, and borderline personality disorder) were examined. Additionally, the relation between the PPI and heroism was explored. One hundred male inmates were administered the PPI, the Questionnaire Measure of Emotional Empathy (Mehrabian & Epstein, 1972), the Aggression Questionnaire (Buss & Perry, 1992), the Protestant Ethic Scale (Mirels & Garrett, 1971), the Self-Report for Borderline Personality Scale (Oldham et al., 1985), and the Activity Frequency Inventory (Lilienfeld, 1998). As predicted, the PPI was significantly negatively correlated with empathy and significantly positively related to aggression and borderline personality. Contrary to prediction, the correlation between the PPI and work ethic was not significant. Eight of 11 hypotheses regarding the relations of the PPI subscales to these 4 constructs were corroborated. Results support the construct validity of the PPI in a correctional sample. The exploratory analysis of the relation between the PPI and heroism revealed no significant relations.     

The development of the Minnesota Multiphasic Personality Inventory

The Minnesota Multiphasic Personality Inventory (MMPI) was constructed at the University of Minnesota before and during World War II. In its developmental phase, the MMPI was conceputalized as an efficient way of detecting psychiatric disturbance. The test's construction was made possible by atypical cooperation between psychologists and psychiatrists, within the context of a crisis in the U.S. public mental health care system. The MMPI was designed to meet the diagnostic needs of psychiatrists. As such, it represented the operationalization of medical hegemony. However, the interpretation of the MMPI shifted significantly after the war, reflecting organizational reform in clinical psychology and changing professional relationships between psychologists and psychiatrists.     

Personality in adulthood: a six-year longitudinal study of self-reports and spouse ratings on the NEO Personality Inventory

Previous longitudinal studies of personality in adulthood have been limited in the range of traits examined, have chiefly made use of self-reports, and have frequently included only men. In this study, self-reports (N = 983) and spouse ratings (N = 167) were gathered on the NEO Personality Inventory (Costa & McCrae, 1985b), which measures all five of the major dimensions of normal personality. Cross-sectional and longitudinal analyses on data from men and women aged 21 to 96 years showed evidence of small declines in Activity, Positive Emotions, and openness to Actions that might be attributed to maturation, but none of these effects was replicated in sequential analyses. The 20 other scales examined showed no consistent pattern of maturational effects. In contrast, retest stability was quite high for all five dimensions in self-reports and for the three dimensions measured at both times in spouse ratings. Comparable levels of stability were seen for men and women and for younger and older subjects. The data support the position that personality is stable after age 30.     

Distinctive Personality Profiles of the Interpersonal Style Inventory

To identify a few homogeneous subgroups with distinct personality profiles, the Interpersonal Style Inventory (ISI) was administered to two samples, each composed of 100 university undergraduates. Ward's hierarchical algorithm and the buildup nonhierarchical cluster analytic program was applied to measures of profile similarity among members of each sample. Of the six clusters that were isolated in the first sample, five were matched at significant levels across the two methods. In the second sample, six clusters were matched across clustering procedures at significant levels. Comparisons across samples disclosed five good matches between clusters generated by the Ward hierarchical algorithm, but only one for the nonhierarchical analytic procedures, These results indicate that most IS1 personality profiles can be classified into five or six categories for purposes of interpretation or prediction.     

The Factor Structure of the Narcissistic Personality Inventory

Seventy-seven female and 86 male psychologist practitioners filled out the Bem Sex Rote Inventory to describe either a healthy adult male, healthy adult female, or healthy adult, sex unspecified. Analyzing the data according to Bem's classification of masculinity, femininity, and androgyny produced a significant Scale X Condition interaction with male and female practitioners ascribing significantly more masculine than feminine traits to healthy adult men, yet displaying no comparable differences when rating healthy adult women. Analyzing the data according to Spence's classification of masculine, feminine, androgynous, and undifferentiated produced a Group X Condition interaction with practitioners ascribing significantly more masculine traits to healthy adult men and significantly more feminine traits to healthy adult women. Reanalyses omitting "masculine" and "feminine" from Bem's fist of sex-typed traits produced nonsignificant results. The relationship of this to recent criticisms of the construct validity of the BSRI and to the validity of earlier results of therapist sex-role bias was discussed.     

Clinical validation of the Chinese Personality Assessment Inventory

The clinical validity of the Chinese Personality Assessment Inventory (CPAI; F. M. Cheung, K. Leung, et al., 1996) was examined in 2 studies involving a group of 167 male prisoners in Hong Kong and a group of 339 psychiatric patients in China. Elevated scores on the clinical scales were obtained for the clinical samples. Logistic regression analyses confirmed that the CPAI scales were useful in differentiating between male prisoner and the Hong Kong male normative sample and between psychiatric patients and a random sample of normal adults in China. Multivariate analyses of variance results showed significant differences on the CPAI clinical scales and personality scales among subgroups of psychiatric patients with diagnoses of bipolar, schizophrenic, and neurotic disorders. The usefulness of an indigenous personality inventory is discussed.