Is the genetic structure of human personality universal? A cross-cultural twin study from North America, Europe, and Asia

This study examined whether universality of the 5-factor model (FFM) of personality operationalized by the Revised NEO Personality Inventory is due to genetic influences that are invariant across diverse nations. Factor analyses were conducted on matrices of phenotypic, genetic, and environmental correlations estimated in a sample of 1,209 monozygotic and 701 dizygotic twin pairs from Canada, Germany, and Japan. Five genetic and environmental factors were extracted for each sample. High congruence coefficients were observed when phenotypic, genetic, and environmental factors were compared in each sample as well as when each factor was compared across samples. These results suggest that the FFM has a solid biological basis and may represent a common heritage of the human species.     

An examination of the RCMAS-2 scores across gender, ethnic background, and age in a large Asian school sample

The present study investigated the factor structure, reliability, convergent and discriminant validity, and U.S. norms of the Revised Children's Manifest Anxiety Scale, Second Edition (RCMAS-2; C. R. Reynolds & B. O. Richmond, 2008a) scores in a Singapore sample of 1,618 school-age children and adolescents. Although there were small statistically significant differences in the average RCMAS-2 T scores found across various demographic groupings, on the whole, the U.S. norms appear adequate for use in the Asian Singapore sample. Results from item bias analyses suggested that biased items detected had small effects and were counterbalanced across gender and ethnicity, and hence, their relative impact on test score variation appears to be minimal. Results of factor analyses on the RCMAS-2 scores supported the presence of a large general anxiety factor, the Total Anxiety factor, and the 5-factor structure found in U.S. samples was replicated. Both the large general anxiety factor and the 5-factor solution were invariant across gender and ethnic background. Internal consistency estimates ranged from adequate to good, and 2-week test-retest reliability estimates were comparable to previous studies. Evidence providing support for convergent and discriminant validity of the RCMAS-2 scores was also found. Taken together, findings provide additional cross-cultural evidence of the appropriateness and usefulness of the RCMAS-2 as a measure of anxiety in Asian Singaporean school-age children and adolescents.     

Morale and its Components: A Cross-National Comparison1

Two U.S. Army armored cavalry squadrons (N= 660), one in Europe (USAREUR), stationed on the East German border, and one in the continental U.S. (CONUS), were administered an English version of a questionnaire widely used in the Israeli Defence Forces (IDF) to assess morale, cohesion and soldier perception of unit readiness for combat. Analysis of inter-item correlations, including factor analyses, revealed a generally similar structure of morale in the U.S. units and a comparable IDF sample stationed along the Lebanon border (N= 1270). All three data sets were organized around a group factor, a leadership factor, and two individual factors, one personal and one professional. National differences were apparent with regard to the relationship between morale and perceived contribution to national security, confidence in weapons, and confidence in senior commanders. In several other respects the USAREUR unit resembled the IDF sample far more than it resembled its sister unit in the U.S. As a whole the data are consistent with the view that morale has relatively similar determinants across armies, but that both national characteristics and situational characteristics (e.g., proximity to a potential foe and/ or battlefield) play a role in the relative importance of these determinants.     

Cross-cultural comparisons of personality dimensions: England and America

Two large-scale applications of the EPQ were carried out on U.S. samples and the dimensions of personality resulting from factor analyses of the resulting matrices of intercorrelations compared with similar data obtained from the original standardization groups of the EPQ in England. It is concluded that very similar factor structures obtained in the two countries, but that quota samples obtained by polling agencies may be less reliable than less representative samples obtained in more usual ways. U.S. Ss are lower on P and higher on E than the U.K. Ss.     

Instrument Development With Web Surveys and Multiple Imputations

This article outlines the development of a tool to assess psychosocial needs in U.S. Air Force (USAF) units. Instrument development began with the construction of an item taxonomy, pretesting procedures (Q-sort; cognitive interviews), and a pilot web survey to document internal consistency and test-retest reliability, followed by two large-scale Web surveys to derive a viable factor structure. Because certain items (e.g., child care) were not relevant to all respondents, multiple imputations to replace missing values were necessary before factor analyses could proceed. Exploratory factor analyses of data from the first Web survey revealed an eight-factor solution; and data from the second Web survey confirmed that the eight-factor solution could be replicated on an independent sample. Developed in accordance with psychometric principles, the final assessment tool tapped a range of psychosocial factors spanning quality of work life, community life, family functioning, and personal well-being.     

Importance of Human Needs During Retrospective Peacetime and the Persian Gulf War: Mideastern Employees

This study examined the importance of needs during the retrospective peacetime in 1990 and the Persian Gulf War in 1991 using a sample of 378 employees in the Middle East. Results of factor analyses identified three levels of needs during peacetime and wartime. Factor structures of needs did change from peacetime to wartime and were different. The patterns of needs identified in this study were different from needs theories developed in the U.S. Results were discussed in light of cultural differences, available resources in the environment, and the Persian Gulf War.     

The Infant Behavior Questionnaire-Revised: Factor structure in a culturally and sociodemographically diverse sample in the United States

The recommended factor structure for the Infant Behavior Questionnaire-Revised (IBQ-R), a widely used parent-report measure of infant temperament, has limited empirical support. Moreover, the recommended factors were developed using homogenous samples not representative of current United States (U.S.) sociodemographics. The objective of this study was to examine the factor structure of the IBQ-R in a culturally and sociodemographically diverse U.S. cohort (N = 380 mother-infant dyads). Mothers were assessed during pregnancy on a range of cultural and sociodemographic characteristics and completed the IBQ-R when their infants were 6 months of age. The sample was diverse on maternal marital status, educational attainment, household income, race/ethnicity, primary language spoken, and country of birth. Initial confirmatory factor analysis for the recommended three-factor model yielded a poor fit. Modifications employed in other studies failed to improve model fit. An exploratory factor analysis revealed an acceptable model fit for a three-factor solution that showed similarities to as well as differences from the originally proposed factor structure. Additional analyses suggested lack of invariance on several factor and scale scores by maternal country of birth, race/ethnicity, and household income. The findings suggest that the commonly used IBQ-R factor structure may need to be adjusted for diverse samples and deserves further study.     

Variations of career decision ambiguity tolerance between China and the United States and between high school and college

The variation of career decision ambiguity tolerance (CDAT) by cultures and development stages was examined in a sample of Chinese high school students (n = 339), a sample of Chinese college students (n = 356), along with U.S. college students (n = 328). It was hypothesized that career decision ambiguity tolerance decreases when individuals experience more societal/cultural pressure on decidedness and responsibility for their career decision making. Based on the three-factor structure of CDAT (i.e., preference, tolerance, and aversion), measurement invariance was examined between Chinese and U.S. college students and between Chinese high school and college students. While the factor of tolerance was not upheld in both Chinese samples, the factors of preference and aversion were found to be structurally invariant across cultures and developmental stages. The analyses comparing means of preference and aversion found that U.S. college students had a higher level of preference relative to Chinese college students. It was also found that in comparison to Chinese high school students, Chinese college students had a higher level of aversion. The criterion validity of CDAT in Chinese culture was supported in the findings of preference and aversion being associated with career exploration and career indecision. The implication of this study was discussed along with its limitations and suggestions for future research.     

A cross-cultural replication of attitudes to the physical environment

A replication of Winkel et al.'s (1969) factor analytic study of attitudes to the U.S.A. physical environment was undertaken in Australia. A questionnaire on reactions to the environment was given to 303 South Australian adults. Three factors similar to those identified by Winkel et al. in the U.S.A. were found. However, the method of factor identification used in the present study allowed clearer interpretation and specification of the dimensions. Three additional factors reflecting individual attitudes towards the environment were also distinguished.     

Revisiting the Factor Structure of the Agoraphobic Cognitions Questionnaire and Body Sensations Questionnaire: A Confirmatory Factor Analysis Study

The twin scales, Agoraphobic Cognitions Questionnaire and Body Sensations Questionnaire (D. L. Chambless, G. C. Caputo, P. Bright, & R. Gallagher, 1984), have been used frequently in the area of anxiety, and in particular, panic disorder with agoraphobia. The present study employed confirmatory factor analysis to investigate the factor structure of the scales in a sample of Australian patients with anxiety disorder. Model testing indicated that neither the original nor the modified factor structures offered a good fit to the data. In addition, confirmatory factor analyses highlighted statistical inconsistencies in the scales. Except for a few, most of the items were problematic. This indicated a need for possible revision of the scales. Moreover, until further research is conducted, researchers and clinicians are recommended to use the scales with caution.     

A psychometric evaluation of the Harvey Imposter Phenomenon Scale

In this article, we present psychometric properties on the 14-item Harvey Imposter Phenomenon (IP) Scale (Harvey, 1981) among a sample of U.S. adolescents (N = 136). Item analyses, internal consistency reliability, and principal components analysis (PCA) were computed to assess the reliability and factor structure of the IP scores. Although the internal consistency reliability (e.g., Cronbach's alpha) was reasonably acceptable (alpha =.70), the item analyses and subsequent PCA suggest concern for the content homogeneity and factor structure of composite scores obtained from the 14-item measure. The results of this study suggest that the indiscriminate use of the Harvey IP Scale is cautioned relative to the insufficient psychometric properties.     

Acculturation and Aggression in Latino Adolescents: A Structural Model Focusing on Cultural Risk Factors and Assets

The specific aim of this investigation was to map cultural factors associated with aggressive behavior in Latino adolescents. Interviews were conducted with a sample of 481 foreign- and U.S.-born Latino adolescents living in North Carolina and Arizona. Structural Equation Modeling was used to validate a conceptual model linking adolescent and parent culture-of-origin and U.S. cultural involvement, acculturation conflicts, and perceived discrimination to family processes (familism and parent-adolescent conflict) and adolescent aggression. Parent-adolescent conflict was the strongest cultural risk factor followed by perceived discrimination. Familism and adolescent culture-of-origin involvement were key cultural assets associated with less aggressive behavior. Exploratory mediation analyses suggested that familism and parent-adolescent conflict mediated the effects of acculturation conflicts, parent and adolescent culture-of-origin involvement, and parent U.S. cultural involvement on adolescent aggression. Implications for prevention programming were discussed.     

Utility of the Spanish translation of the Marital Satisfaction Inventory-Revised in Spain

This study examined psychometric characteristics of the Spanish translation of the Marital Satisfaction Inventory-Revised (MSI-R) in a community sample of 205 couples from Spain. Overall, analyses of the scales' internal consistency compared favorably with findings for both the English and Spanish versions of this instrument with U.S. samples. Confirmatory factor analyses revealed similar scale factor structures across the original measure and Spanish translation, lending further support to using the MSI-R with couples from diverse cultural backgrounds whose sole or preferred language is Spanish. Mean profile comparisons between the current Spanish sample and the original standardization sample revealed significant differences on several scales. Implications of findings for clinical applications and further research are discussed.     

Sample and population score matrices and sample correlation matrices from an arbitrary population correlation matrix

A method for generating sample and population score matrices and sample correlation matrices from a given population correlation matrix is developed. An example giving the desired matrices for a population Guttman simplex correlation matrix is presented.The computations for this paper were done on Illiac, an electronic computer of the Digital Computer Laboratory of the University of Illinois. Mr. S. Hunka assisted in these computations. The final version of this paper was prepared while the senior author was a U. S. Public Health Service Fellow at the Center for Advanced Study in the Behavioral Sciences.     

Genetic influences on core self-evaluations,job satisfaction,and work stress: A behavioral genetics mediated model

In this study we investigated the mediated influence of core self-evaluations (CSE) on employee health problems via job satisfaction and work stress, and the degree to which genetic factors explain these mediated relationships. Based on data obtained from a sample of 594 Swedish twins (114 monozygotic twin pairs and 183 dizygotic twin pairs), conventional path analysis results supported the mediated effects of CSE on employee health via job satisfaction and work stress, after controlling for conscientiousness and extraversion. Behavioral genetic analyses showed significant heritability of all four variables. Moreover, we found that the mediated relationships via job satisfaction and work stress are explained by genetic factors, such that the genetic source of job satisfaction and work stress mediates the genetic influence of CSE on health problems. These results highlight the role played by genetic factors in better understanding the relationships between CSE, work attitudes, and health outcomes.     

Health locus of control in late life: a study of genetic and environmental influences in twins aged 80 years and older.

The factor structure of health locus of control (Form A; K. A. Wallston, B. S. Wallston, & R. DeVellis, 1978) was examined in 420 octogenarians (M age = 83.2 years), and the contributions of genetic and environmental factors to health-control beliefs in 141 octogenarian twin pairs (71 identical, 70 same-sex fraternal) were estimated. Factor analyses reproduced previously proposed factors (Internal, Chance, and Powerful Others). Associations between health-control beliefs and life satisfaction, depression, and other health-related measures (e.g., self-rated health, outpatient contacts, and hospitalization), were modest. Quantitative genetic analyses revealed significant shared environmental influence on the Chance subscale, and significant familiality (attributable to a combination of genetic and shared environmental influences) on the Powerful Others subscale; there was no evidence of familiality on the Internal subscale.     

Genetic and environmental influences on pre‐schizophrenic personality: MAXCOV‐HITMAX and LISREL analyses

Postulating that the predisposition to illness in Claridge's disease model of schizophrenia can be equated with the personality dimensions S or Insensitivity, (low) E or Extraversion, and N or Neuroticism, as measured by Van Kampen's 3DPT, and assuming that the mode of transmission of schizophrenia is basically polygenic, the genetic and environmental etiology of S, E, and N was assessed in a sample of 52 MZ and 76 DZ twin pairs and their parents by means of LISREL. Besides, in a sample of 2118 subjects MAXCOV–HITMAX analyses were conducted for these factors as well as for the personality dimension G or Orderliness, but now assessed by the 4DPT, in order to find out whether a discrete or quasi‐discrete variable might also underlie these dimensions, giving support to the possibility of dominance or epistasis. The results obtained in these investigations favoured a model for all three dimensions, allowing for both additive and non‐additive genetic effects in combination with non‐shared environmental influences. It was not possible to choose between a model involving dominance and a model involving epistatic genetic effects. With the use of scores corrected for sex and age, which were converted to normal scores, the proportion of variance explained by additive genetic factors was 20% for S, 40–41% for E, and 26–29% for N. Dominance or multiple‐gene epistasis accounted for 37–38% (S), 19–20% (E), and 30–31% (N), and unshared environmental influences for 42–43% (S), 41% (E), and 42–43% (N) respectively. Copyright © 1999 John Wiley & Sons, Ltd.     

Sex differences in the factor structure of a modified Sexual Experiences Questionnaire

Sexual harassment has long been a problem in educational, employment, and military populations. It is unclear whether existing questionnaires used to measure sexual harassment in the U.S. military--particularly, derivatives of the Sexual Experiences Questionnaire--perform similarly in men and women. Using exploratory factor analyses in a mixed sample of active duty troops and veterans (289 men, 181 women), sex differences were found in one version's factor structure. Implications and suggestions for improving the validity of the questionnaire for men are offered.     

Horizontal and vertical individualism and collectivism among college students in the United States, Taiwan, and Argentina.

Among college students in the United States, Taiwan, and Argentina, the author examined the strength of 4 cultural patterns (horizontal collectivism, vertical collectivism, horizontal individualism, vertical individualism; H. C. Triandis, 1995). A 3-group confirmatory factor analysis established the measurement equivalence among the 3 samples before the comparison. The Taiwanese and the Argentine samples were more vertically collectivist than the U.S. sample. The U.S. and the Taiwanese samples were more vertically individualistic than the Argentine sample. The U.S. sample was more horizontally individualistic than the Argentine sample, which, in turn, was more horizontally individualistic than the Taiwanese sample.     

Association of the Thin Body Ideal, Ambivalent Sexism, and Self-Esteem with Body Acceptance and the Preferred Body Size of College Women in Poland and the United States

A study of body satisfaction in 111 Polish and 83 U.S. college women indicated that when Body Mass Index (BMI) was controlled Polish women had larger perceived body sizes and desired a larger body ideal. The Polish sample had higher scores on the Hostile and Benevolent Sexism scales (Glick & Fiske, 1996), whereas the U.S. sample scored higher on the Internalization scale of the Sociocultural Attitudes Toward Appearance Questionnaire (SATAQ; Heinberg, Thompson, & Stormer, 1995). Benevolent sexism was related to the acceptance and use of cosmetics in the Polish sample, but not in the U.S. sample. The SATAQ Awareness and Internalization scales were related to low body acceptance in both samples. The Internalization scale was related to discrepancies between the respondents' own bodies and their ideal body types in the U.S. sample but not in the Polish sample. Although the Polish and U.S. samples were more alike than different, sexism was strongly associated with body dissatisfaction in the Polish sample, whereas the SATAQ Internalization scale was strongly associated with body dissatisfaction in the U.S. sample. The results support the hypothesis of globalization of the thin body ideal, illustrate the importance of controlling for BMI in studies of body satisfaction, and demonstrate relationships between sexism, internalization of the thin body ideal, and body dissatisfaction.