Comparability of MMPI and MMPI-2 Profile Patterns: Ben-Porath and Tellegen's Inappropriate Invocation of Mahalanobis's D² Function

Ben-Porath and Tellegen (1995) claimed that the data in the article by Humphrey and Dahlstrom (1995) were improperly analyzed by means of Q correlations between raw scores earned by the individuals in the forensic sample to establish pattern comparability between the original Minnesota Multiphasic Personality Inventory (MMPI; Hathaway & McKinley, 1943) and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989), which were then contrasted with Q correlations between the corresponding T-score patterns. Ben-Porath and Tellegen (1995) contended that the Q correlation is affected by random factors and that a generalized distance function, D², is the only legitimate index of profile comparability. Data are presented here to show that the Q correlation serves as a reliable index of pattern comparability, relatively unaffected by differences in profile elevation. The Mahalanobis (1936) D² index is too heavily weighted with differences in profile elevation serve as the proper index of equivalence in profile patterning. The findings in the Humphrey and Dahlstrom (1995) article were based on appropriate data-analytic procedures because the primary concern is their investigation was the extent to which the patterns of T-score profiles from the original MMPI and the MMPI-2 are comparable when the raw-score patterns are virtually identical.     

Comparability of MMPI and MMPI-2 profile patterns: Ben-Porath and Tellegen's inappropriate invocation of Mahalanobis's D2 function

Ben-Porath and Tellegen (1995) claimed that the data in the article by Humphrey and Dahlstrom (1995) were improperly analyzed by means of Q correlations between raw scores earned by the individuals in the forensic sample to establish pattern comparability between the original Minnesota Multiphasic Personality Inventory (MMPI; Hathaway & McKinley, 1943) and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989), which were then contrasted with Q correlations between the corresponding T-score patterns. Ben-Porath and Tellegen (1995) contended that the Q correlation is affected by random factors and that a generalized distance function, D2, is the only legitimate index of profile comparability. Data are presented here to show that the Q correlation serves as a reliable index of pattern comparability, relatively unaffected by differences in profile elevation. The Mahalanobis (1936) D2 index is too heavily weighted with differences in profile elevation serve as the proper index of equivalence in profile patterning. The findings in the Humphrey and Dahlstrom (1995) article were based on appropriate data-analytic procedures because the primary concern is their investigation was the extent to which the patterns of T-score profiles from the original MMPI and the MMPI-2 are comparable when the raw-score patterns are virtually identical.     

Within-subject covariation between depression- and anxiety-related affect

Studies find a strong positive relationship between the affective components of anxiety and depression. However, most research thus far has examined the between-person correlations among these constructs, while ignoring how changes in these two types of affect covary over time within a person. Within-person correlations could differ meaningfully from how anxiety- and depression-related affect relate across individuals. Further, individuals may differ in terms of how highly these constructs covary over time. The current study aimed to (1) compare between- and within-person correlations between anxious and depressive affect, (2) examine lagged effects between anxious and depressive affect over time, (3) test whether individuals differ in their within-person correlations between these two types of affect, and (4) examine whether the mean level of affective intensity moderated these individual differences. These questions were explored using college undergraduates (N?=?50) who rated their depression- and anxiety- related affect six times a day for two weeks. A higher average correlation was observed between anxious and depressive affect in between-person compared to within-person analyses. Significant bidirectional lagged effects were observed between these constructs. Individuals with higher average levels of anxious affect experienced stronger within-person correlations between anxious and depressive affect.     

Phenotypic and genetic relationships between vocational interests and personality

Relationships between personality and vocational interest factors were examined at the phenotypic and genetic levels. Twins and siblings (N = 516) completed self-report personality and vocational interest scales. Following factor analyses of each scale, five personality and six vocational interest factors were extracted. At the phenotypic level, correlations between personality and vocational interests ranged from zero to .33. Heritability estimates of the scales showed that genetic components accounted for 0–56% of the variance for the vocational interest factors and 44–65% for the personality factors. Genetic correlations between the two areas ranged from zero to .50. The results suggest that personality is related to some vocational interest dimensions and that some of these observed relationships have a common genetic basis.     

Multiaxial empirically based assessment: Parent,teacher, observational,cognitive, and personality correlates of Child Behavior profile types for 6- to 11-year-old boys

The purpose of this study was to determine whether profile patterns derived from parents' ratings of clinically referred boys were significantly associated with differences in functioning identified via teachers' ratings, direct observations, cognitive tests, and personality measures. Subjects were 185 6- to 11-year-old boys who were referred to an outpatient psychiatric service or school psychologist and whose Child Behavior Checklist (CBCL) profiles correlated significantly with types previously identified through cluster analysis. Comparisons of boys classified by six CBCL profile types and Internalizing versus Externalizing groupings of these types showed many differences that are not apt to be evident in linear correlations between the different sources of data. The findings provide a basis for research on differences between profile patterns with respect to etiology, course, prognosis, and responsiveness to interventions. They also indicate the potential importance of higher-order patterns of functioning that extend across multiple sources of data.This research was supported by grants from the Spencer Foundation, the W. T. Grant Foundation, and NIMH Grant 40305. The authors are grateful to Heather McCollum and Nancy Pandina for serving as observers, and to the parents, children, teachers, and principals who made this study possible.     

Validity of the V. C. Aeronautics Aptitude Test and the O. E. Scientific Aptitude Test

An hierarchical factor solution was obtained on correlations among WISC and ITPA subtests for 110 reading disabled children. The ability hierarchy which included a general (g) factor, two subgeneral factors, and five primary factors was arranged in a manner congruent with Vernon's structural paradigm. The g-factor was defined by a moderate but distinct pattern of positive loadings from WISC and ITPA subtests. At the subgeneral level a verbal-educational factor was defined by verbal WISC and ITPA subtests, and a spatial-perceptual-mechanical factor was defined by WISC performance and ITPA visual subtests. Three primary factors—freedom from distractibility, verbal precision, and quasi-specific—were defined by WISC subtests. Two primary factors—automatic processes and representational processes—were defined by ITPA subtests.     

A comparative study of rodent social behavior in a seminatural enclosure

Social behavior, aggression, and copulation were studied in six groups of two males and two females each in seven species of muroid rodents (Clethrionomys gapperi, Microtus montanus, M ochrogaster, M pennsylvanicus, Peromyscus eremicus, P leucopus, and P polionotus) in a seminatural enclosure. Data were compared to those from an earlier study with P maniculatus tested under identical conditions. There were appreciable species differences in levels of both aggressive and sexual behavior; the two were not significantly correlated. Although levels of aggression did not appear well correlated with reports of social structure in the field, patterns of weight loss and litter production during the study did appear correlated. In general, levels of copulatory behavior appeared weakly correlated with factors previously proposed as predictors of polygamous mating systems; levels of aggressive behavior were better correlated with taxonomy.     

The Implications of Two Conceptions of Happiness (Hedonic Enjoyment and Eudaimonia) for the Understanding of Intrinsic Motivation

The distinction between hedonic enjoyment and eudaimonia was evaluated in three data sets involving use of the Personally Expressive Activities Questionnaire—Standard Form (PEAQ-S) with college student samples (n > 200 in each sample). Indices of these two conceptions of happiness were strongly and reliably related across the three samples. Differences between these two conceptions of happiness were evaluated in two ways. First, we examined and compared correlations of hedonic enjoyment and eudaimonia with variables related to intrinsic motivation. Zero-order correlations involving hedonic enjoyment were significantly stronger with respect to measures of self-determination and interest than were the corresponding correlations involving feelings of personal expressiveness (eudaimonia). In contrast, correlations involving eudaimonia were significantly stronger with measures of the balance of challenges and skills, self-realization values, effort, and importance than were the corresponding correlations with hedonic enjoyment. Second, we empirically distinguished between activities for which both hedonic enjoyment and eudaimonia are present (intrinsically motivated activities) and activities for which hedonic enjoyment alone is present (hedonically enjoyed activities). Intrinsically motivated activities were judged to be significantly higher with respect to measures of the balance of challenges and skills, self-realization values, effort, importance, interest, and flow experiences. No differences between the two categories of activities were found for self-determination and the frequency with which activities were performed. Given these distinguishable patterns in the two conceptions of happiness, a reconceptualization for the understanding of intrinsic motivation is proposed.     

Chinese values in Singapore: Traditional and modern

A series of three studies was conducted to test the internal structure of the Chinese value hierarchy (CVH) in Singapore. Study 1 identified the empirically best–fit model with six factors: Prudence, Industry, Civic–Harmony, Moral Development, Social Power and Moderation. Relative magnitudes and interfactor correlations suggested that these factors could be further grouped into two superordinate clusters: (i) The Modern factor, with significantly higher magnitude, consisted of Prudence, Industry, Civic–Harmony and Moral Development; and (ii) the Tradition factor, with lower magnitude, consisted of Social Power and Moderation. Study 2 surveyed university students with differential preference for language usages: English or Chinese. Both language groups were equally high on the Modern factor, but the Chinese–language–preferred group showed a significantly higher endorsement for the Tradition factor, Chinese Worldview (CWV) and Chinese Health Beliefs (CHB). Further convergent validation for the Modern and the Tradition factors was provided by investigating their correlations with traditional Chinese beliefs and practices for the two language groups separately. Study 3 tested generation differences in CVH. University participants (Self) were compared with their parents (Parents) and friends (Friends). There were no differences between Self and Friends on both the Modern and Tradition factors, CWV and individual differences of modernity. Parents and Self did not differ on individual differences of modernity. Parents, however, were higher on the Modern factor, the Tradition factor and CWV. Results were discussed to support the concept of 'multiple modernity' (Tu, 1900) in Asian societies, and the 'revised convergence hypothesis' proposed by Yang (1988).     

Convergent Evidence for Basic Motivational Dimensions

Subjects (N = 217) rated the attractiveness of 56 general goals and then completed 3 theory-based tests of personality or motivation. Two goal factors—labeled Social-Economic Status and Competitive Achievement—seemed to reflect two broad domains of status-seeking motivation, and two other factors—labeled Growth Orientation and Interpersonal Security—pointed to separate domains of cooperative motivation. Thus, there was confirmation for the widespread assumption of two primary types of interpersonal motivation (solidarity and status) in our culture but also for important distinctions within each type. Canonical and direct correlations with the theoretically-grounded measures strongly supported that interpretation of the factors. Meaningful relationships between factors obtained from the questionnaire and the more rationally-based test scores indicated convergence in mappings of motivational space.     

An extension of construct validity for personality scales using twin-based criteria

A twin-based analysis of personality inventory scales yields information relevant to construct validity. If scales validly measure dimensions influenced developmentally either by environmental factors common to cotwins or by genetic similarities, these influences should be apparent in patterns of intraclass correlations and within-pair variance ratios for monozygotic and dizygotic pairs. Criteria for construct validity derived from adolescent twin statistics are illustrated with Wiggins' MMPI Content Scales. A type of discriminant validity indicates that some scales are not distinct in terms of the influences of familial similarity. Sex differences are examined.     

Comparing methods for measuring peak look duration: Are individual differences observed on screen-based tasks also found in more ecologically valid contexts?

Convergent research points to the importance of studying the ontogenesis of sustained attention during the early years of life, but little research hitherto has compared and contrasted different techniques available for measuring sustained attention. Here, we compare methods that have been used to assess one parameter of sustained attention, namely infants’ peak look duration to novel stimuli. Our focus was to assess whether individual differences in peak look duration are stable across different measurement techniques. In a single cohort of 42 typically developing 11-month-old infants we assessed peak look duration using six different measurement paradigms (four screen-based, two naturalistic). Zero-order correlations suggested that individual differences in peak look duration were stable across all four screen-based paradigms, but no correlations were found between peak look durations observed on the screen-based and the naturalistic paradigms. A factor analysis conducted on the dependent variable of peak look duration identified two factors. All four screen-based tasks loaded onto the first factor, but the two naturalistic tasks did not relate, and mapped onto a different factor. Our results question how individual differences observed on screen-based tasks manifest in more ecologically valid contexts.     

The development of an instrument to measure occupational stress in teachers: The Teacher Stress Inventory

The content validity, factorial validity, and internal consistency reliability of a scale developed to assess occupational stress in teachers were investigated. The content validity of the scale was determined from expert opinion and appraisal data collected from 92 teachers, stress researchers and practitioners. Data collected from two samples of special education teachers (n = 370; n = 371) and one sample of regular education teachers (n = 433) were then subjected to factor analyses followed by varimax and oblique rotations. Six factors resulted for each of two measures: stress strength and stress frequency. Additional analyses indicated that each subscale has moderate-to-high internal consistency reliabilities for both strength and frequency dimensions, moderate-to-high correlations between the strength and frequency measures of each subscale, and a large degree of agreement for the content validity of each subscale, for each of six subscales: Personal/Professional Stressors; Professional Distress; Discipline and Motivation; Emotional Manifestations; Biobehavioural Manifestations; and Physiological-Fatigue Manifestations.     

Stability of Q-sort attachment security from age two to five

The current report demonstrates reliability and stability of Q-sort attachment security in a sample of 46 mothers and their children seen by two observers at age two and again at age four to six years. Security scores were correlated between ages (r=.44), and a high proportion of item-by-item correlations between ages were also significant.     

Meditation and psychosocial adaptation: An exploratory study

The current study examined differential patterns of interrelationships between meditators and nonmeditators on issues pertaining to psychosocial adaptation. Subjects (N=66) were randomly selected from mailing lists provided by theAssociation of Transpersonal Psychology or were solicited via classified advertising in theChicago Tribune and theDallas Morning News. The findings of the current study indicate that there are no differences between meditators and nonmeditators on level of psychosocial adaptation. However examination of the zero-order correlations between dependent measures revealed differential patterns of interrelationships within the meditator and nonmeditator groups. The findings suggest that further research is needed which expands upon the influence of meditation on psychosocial adaptation by addressing topics specific to meditative practice. The implications for the development of qualitative research methods designed to investigate psychosocial parameters in transpersonal psychology are discussed.     

The Hopelessness Scale for Children: Psychometric properties with normal and emotionally disturbed adolescents

The psychometric properties of the Hopelessness Scale for Children (HSC) were evaluated with a sample of 834 normal adolescents and 93 adolescent suicide attempters. Factor analyses studies revealed two factors with both groups. Internal consistency with item-total score correlations were acceptable, while moderate test-retest reliability was found over a 10-week period with the normal sample. Support for the validity of the HSC was provided via studies with the suicide attempter group in which positive correlations with depression and depressive attributional style were found. Predicted differences between the suicide attempters, an outpatient psychiatric sample, and normal controls were also found. However, some items did not appear to discriminate suicide attempters from controls. Results are discussed in terms of the utility of the HSC with adolescents and adolescent suicide attempters and with regard to differences between child and adult samples in hopelessness.     

A reexamination of the validity of the Children's Personality Questionnaire

Scores on the Children's Personality Questionnaire (CPQ) were correlated with ratings on the Devereux Elementary School Behavior Rating Scale (DESB). Three judges matched scales from the two instruments that appeared to measure the same behavior. For about one-third of these matches, significant correlations in the predicted direction were found. Of the 154 possible correlations between CPQ factors and DESB scales, 50 reached significance. The results contradict those of a similar investigation (Willis & Seymour, 1978), whose methodology is questioned. The correlations found in the present study provide limited support for the validity of CPQ factors.     

Fact and Fiction in Implicit Personality Theory

ABSTRACT This article reports two studies, where the accuracy of implicit personality theory (IPT) was investigated using on-line behavior counts as well as retrospective frequency estimates as standards of comparison Eight discussion groups, each comprising six members, were videotaped Their act frequencies with respect to 16 types of behavior were judged on-line using two coding schemes, each one being applied by two independent raters Five other judges estimated the act frequencies retrospectively Furthermore, judges revealed their IPT by estimating the conditional likelihood of these types of behavior It turned out that (a) retrospective judges perceive different base rates accurately, (b) the correlations among retrospectively estimated and among on-line recorded act frequencies show high correspondences, (c) IPT accurately mirrors the correlations among retrospectively estimated as well as among on-line recorded act frequencies, and (d) judges do not appropriately consider perceived base rates when estimating conditional probabilities It is concluded that IPT is considerably accurate in those respects that are important for the validity and structural fidelity of personality ratings     

The Validity of the SHL Customer Service Questionnaire (CSQ)

This study set out to validate the Saville and Holdsworth (SHL) Customer Services Questionnaire (CSQ) by relating test scores to ‘objective measures’ like absenteeism, punctuality, and letters of compliment and complaint, as well as subjective supervisor rating measures. Over 170 airport staff served as subjects. The dependent measures were logically related one to another and there were a few sex and rank differences on them. A number of significant correlations between CSQ subscales and the dependent measures showed two subscales (TC4) Approach to Organizing and (EC2) Need for Results the best correlates of the dependent variable. Of the subscales scores within the three factor scores Relations with People showed fewest significant correlations, and Emotions and Energy most. Results were discussed in terms of the limited research in this field.     

The Social Phobia and Social Interaction Anxiety Scales: Evaluation of Psychometric Properties

The present investigations examined the factor structure and psychometric properties of two new self-report measures of social phobia, the Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS). A confirmatory factor analysis in Study I provided support for the fit of a two-factor model of the SIAS and SPS. Internal consistency estimates were high for the original two scales with a sample of 200 undergraduates. Also, using an item parceling procedure, the obtained internal consistency reliability indices for each parcel were acceptable. Results of the CFA in Study II provided support for the factorial stability of the model identified in Study I. Furthermore, multisample analyses showed invariant patterns for factor loadings and factor correlations across 138 men and 272 women. Gender differences were not observed in the mean SIAS and SPS scale and item scores. Both scales correlated negatively and significantly with measures of social desirability. Concurrent validity was established for the scales. The SPS was less specific than the SIAS to symptoms of social phobia.