A Redundancy Analysis for the Inwald Personality Inventory and the MMPI

A redundancy analysis between two psychological preemployment screening inventories was conducted with 2,438 male correction officer candidates. One canonical variate accounted for the majority of overlapping variance. When cross-validated, redundancy indices were. 17 for the Inwald Personality Inventory (IPI) and. 15 for the Minnesota Multiphasic Personality Inventory (MMPI). Three areas of overlap—control over actions, external control, and restlessness—were suggested. Less pathological behavioral patterns predictive of future job performance appeared measured only by the IPI. These results, combined with results from predictive validity studies, provide evidence that pathology is not sufficient for identifying "high risk" candidates.     

The Inwald Personality Inventory (IPI) and Hilson Research inventories: Development and rationale

This article provides a “behind-the-scenes” account of how and why the Inwald/ Hilson tests were developed. Since the 1970s, personality testing has been adapted and customized for use in selecting applicants for different occupations, including police, public safety, fire and emergency services personnel. The author developed the Inwald Personality Inventory (IPI) in 1979 as the first comprehensive behaviorally-based personality measure designed and validated specifically for use in high risk occupations, such as law enforcement. Over time, studies consistently demonstrated that the IPI was a better predictor of poor job performance than were traditional tests of psychopathology. While antisocial behavior patterns and characteristics measured by the IPI predicted poor job performance, there also developed a need for measures that would predict above-average/excellent performance in the workplace. In 1988, the author designed and validated the first comprehensive test of “positive” work-related characteristics or “emotional IQ,” the Hilson Personnel Profile/Success Quotient (HPP/SQ). Other instruments followed, including the Inwald Survey 5 — Revised (IS5-R) with questions added on domestic violence. This article describes the theoretical rationale, development and validation of several instruments developed by the author and now widely used for high risk occupations and for screening corporate managers and key personnel in occupational settings.     

A Multitrait-multimethod examination of Minnesota Multiphasic Personality Inventory (MMPI) and Millon Clinical Multiaxial Inventory (MCMI)

Recently, certain Minnesota Multiphasic Personality Inventory (MMPI) and Millon Clinical Multiaxial Inventory (MCMI) scales have seen increasing usage for the measurement of DSM-III personality disorders. The current study sought to identify the convergent and discriminant validity of these two sets of scales for this purpose. In general, the results indicated significant convergence across the two instruments. However, better convergent validity was found for scales representing those DSM-III disorders which are most consistent with the typology upon which the MCMI was based. In particular, convergent and discriminant validity results were poorest for Compulsive, Antisocial, and Passive-Aggressive personality scales.     

A New Scale for Scoring the Bernreuter Personality Inventory

Abstract

Two studies with American students demonstrated the utility of interpersonal theory in social psychological research. The hypothesis in Study 1, following Mead's (1934) interactionist viewpoint, was that others' perceptions of an individual relate to how that individual thinks these others view him and that these reflexive self-perceptions are subsequently linked with an individual's self-perceptions. This conceptualization corrected Shrauger and Schoeneman's (1979) erroneous parallelism between self-images and reflected perceptions and between self-images and others' actual perceptions. It extended previous works by using interpersonally based self- and other-acceptance measures, a “naturalistic” setting, and repeated measurements. Three of four regression analyses supported the hypothesis. Study 2 was conducted to investigate further significant differences found between the self-and other-acceptance measures. As predicted from Sullivan's (1953) interpersonal theory, individuals considered it more important to be viewed as accepting of others than of self, although their other-acceptance schemata was, in general, more poorly defined.     

Factor analysis and construct validity of the Narcissistic Personality Inventory

Three studies are reported which provide evidence for the validity of the Narcissistic Personality Inventory (NPI). Factor analysis of the NPI in Study 1 revealed four factors which were labelled: Exploitativeness/Entitlement, Leadership/Authority, Superiority/Arrogance, and Self-absorption/Self-admiration. In Study 2, scores on the NPI were correlated with basic dimensions of personality, and with relevant self-variables. Narcissism scores were positively related to dominance, exhibitionism, extraversion, self-esteem, and self-monitoring, among others; and negatively related to abasement, deference, and social anxiety, among others. Correlations between the NPI factors and personality variables are also examined. In Study 3, peer ratings of narcissism were obtained and it was found that these were strongly related to scores on the NPI. Taken together, the three studies provide considerable evidence for the construct validity of the NPI, and avenues for future research are suggested.     

Positive response distortion by police officer applicants: association of Paulhus Deception Scales With MMPI-2 and Inwald Personality Inventory Validity Scales

Interpretation of positive response distortion (socially desirable responding) in employment evaluations is an important validity issue. This study of police officer applicants examined the construct validity of the Paulhus Deception Scales (PDS)-Moralistic Bias (MB; exaggerated adjustment/agreeableness) and Egoistic Bias (EB; exaggerated power/ status)-in relation to validity scales of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; L, K, and S) and Inwald Personality Inventory (IPI; Guardedness). In regression analyses, MB was significantly associated with each validity scale (particularly L and Guardedness), whereas EB was significantly, but weakly, associated with L only. MB is consistent with response distortion as reflected in L ("perfect" adjustment/personality) and Guardedness (denial of shortcomings/faults). EB is a unique form of response distortion that is not reflected in MMPI-2 or IPI validity scales. The relevance of EB to self-assessment among police officer applicants is an important practical concern in personnel selection and an important theoretical question for future response distortion research.     

Construct interpretation of Minnesota Multiphasic Personality Inventory (MMPI) clinical scales: An orthogonal transformation

The implications for personality test construction of the revolution in testing caused by construct validity considerations are outlined, with particular relevance to the assessment of psychopathology. These include (a) substantive definition of constructs; (b) concern for internal consistency reliability as well as generalizability; (c) evaluation of structural relationships among items and scales; (d) suppression of response biases; (e) emphasis on minimum redundancy among scales; (f) evaluation of convergent and discriminant validity of scales and profiles; and (g) evaluation of criterion validity for configurations of scales and profiles, as well as single scales. Benefits are seen as accruing to an increased understanding of psychopathology and higher levels of validity. Prior, and subsequent, to the forthcoming revision of the Minnesota Multiphasic Personality Inventory (MMPI), one approach to realizing some of the aims of construct measurement with an empirically based test is through an orthogonal transformation of the scales. Preliminary results for the extant MMPI clinical scales are reported, yielding evidence of (a) scale independence while retaining high correlations with uncorrected scales, (b) an appropriate pattern of correlations with a separate set of new scales of psychopathology, (c) a possible basis for new item analyses, and (d) freedom from correlations with a putative measure of response bias. Implications of the orthogonal transformation for profile interpretation are discussed.Portions of this paper were presnted at an invited address, 18th Annual Symposium on Recent Developments in the Use of the MMPI, Minneapolis, April 9, 1983. This paper was written while Douglas N. Jackson was distinguished visiting professor at the College of Education, The University of Iowa. This research has been supported by Research Grant 895-84/86 from the Ontario Mental Health Foundation, Research Grant 411-83-0014 from the Social Sciences and Humanities Research Council of Canada, and the Alberta Hospital Edmonton.     

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.     

Psychological and sexual functioning among outpatient sexual offenders against children: A Minnesota Multiphasic Personality Inventory (MMPI) cluster analytic study

Multivariate clustering procedures were used to identify homogeneous subgroups of outpatient sex offenders against children (n=110)on the basis of the Minnesota Multiphasic Personality Inventory (MMPI). Results indicated a five-subgroup solution. Two within-normal-limits and two clinically elevated profile subgroups replicated subtypes found in previous cluster analytic studies of child sex offenders. The fifth subgroup appeared similar in MMPI profile pattern and elevation to a previously identified subtype of rapists. Discriminant analyses showed that subgroups differed along dimensions of cognitive disturbance and sexual functioning. Furthermore, levels of psychopathology corresponded with levels of sexual pathology. Results are discussed with reference to previous MMPI cluster analytic studies of sex offenders and theories of sexual aggression.Portions of this paper were presented at the meeting of the Midwestern Psychological Association, 1992, Chicago, Illinois.     

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.     

A Hostility Scale for the California Psychological Inventory: MMPI,Observer Q-Sort,and Big-Five Correlates

Using two samples, we developed and validated a hostility scale that can be scored from the California Psychological Inventory (CPI) and serves as an alternate for the Cook-Medley Hostility Scale (Ha; Cook & Medley, 1954). The CPI Hostility (H) scale consists of 33 items that are either duplicates or close equivalents of specific He items, and the two scales correlate at least .90 in samples differing in sex. The H and Ho scales show a similar pattern of correlations with conceptually relevant MMPI scales and with observer-rated personality attributes tapping Barefoot, Peterson, et al.'s (1991) five hostility categories of Hostile Affect, Cynicism, Aggressive Responding, Social Avoidance, and Hostile Attributions. These findings provide evidence for the equivalence of the two hostility scales, as well as external validation for those personality characteristics that are purported to underlie the construct of hostility as tapped by both the original Ho and the new CPI H scale.     

Length of Personality Inventory and the Evaluation of a Generalized Personality Interpretation

Subjects were given the same generalized personality interpretation based on personality inventories differing in length. The short inventory was seen as more efficient than the two longer forms. While no significant differences were noted between forms in terms of accuracy and depth of the interpretation, in percentage terms the short form was more favorably evaluated.     

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.