Why are there so few ethnic minorities in ecology and evolutionary biology? Challenges to inclusion and the role of sense of belonging

Social Psychology of Education - African Americans and other ethnic minorities are severely underrepresented in both graduate education and among the professoriate in ecology and evolutionary...     

Factors Influencing the Maternal Life Balance of Flemish Mothers,a Cross-Sectional Study

Applied Research in Quality of Life - This cross-sectional study examined the levels of maternal life balance and its influencing factors. The sample was composed of 731 Flemish mothers who...     

Expanding and Reconceptualizing Aberrant Personality at Work: Validity of Five‐Factor Model Aberrant Personality Tendencies to Predict Career Outcomes

This study proposes and tests an alternative methodology to conceptualize and assess aberrant personality tendencies at work beyond the dark triad. A sample of college alumni (N= 247) were administered the NEO PI‐R prior to entering the labor market and 15 years later when their professional careers had unfolded. Drawing on the dimensional perspective on personality functioning, 6 five‐factor model (FFM) aberrant compounds were computed as indicators of aberrant personality tendencies. As expected, FFM aberrant personality tendencies were highly stable across time, with test–retest correlations ranging from .61 (Narcissistic) to .73 (avoidant). With regard to predictive validity, borderline, schizotypal, and avoidant tendencies were negatively associated with extrinsic and intrinsic career outcomes. The obsessive‐compulsive tendency was largely unrelated to career outcomes, whereas individuals with antisocial and narcissistic characteristics tended toward higher hierarchical and financial attainment. In addition, relative importance analyses indicated that (a) FFM aberrant personality tendencies showed incremental validity in the prediction of career outcomes beyond FFM general traits, and that (b) both FFM general and FFM aberrant personality tendencies are important predictors when considered jointly. It is concluded that FFM aberrant personality tendencies suggest interesting avenues for personnel psychologists to form new linear combinations of FFM facets, complementing FFM general domains.     

Personal Identity in College and the Work Context: Developmental Trajectories and Psychosocial Functioning

Personal identity formation represents a core developmental challenge for adolescents and young adults. Because much of the identity literature focuses on college students, it is necessary to conduct a detailed inquiry into the ways in which specific commitment and exploration processes develop over time for college students and for employed individuals. Two samples (456 college students and 318 employed individuals) were used to identify identity status trajectories over time and to examine external correlates of these trajectories (i.e. depressive symptoms, self‐esteem, identity centrality, community integration, and sense of adulthood). Similar identity trajectories emerged in both college students and employed individuals. Four of these trajectories corresponded to Marcia's identity statuses. In addition, apart from the ‘classical’ or troubled diffusion trajectory, a carefree diffusion trajectory was also obtained. Whereas individuals on an identity‐achieved pathway fared best in terms of the outcome measures, individuals in the troubled diffusion trajectory fared worst in terms of self‐esteem, depressive symptoms, and community integration over time. Implications and suggestions for future research are discussed. Copyright © 2013 John Wiley & Sons, Ltd.     

The Reliability of Armchair Intuitions

Armchair philosophers have questioned the significance of recent work in experimental philosophy by pointing out that experiments have been conducted on laypeople and undergraduate students. To challenge a practice that relies on expert intuitions, so the armchair objection goes, one needs to demonstrate that expert intuitions rather than those of ordinary people are sensitive to contingent facts such as cultural, linguistic, socio‐economic, or educational background. This article does exactly that. Based on two empirical studies on populations of 573 and 203 trained philosophers, respectively, it demonstrates that expert intuitions vary dramatically according to at least one contingent factor, namely, the linguistic background of the expert: philosophers make different intuitive judgments if their native language is English rather than Dutch, German, or Swedish. These findings cast doubt on the common armchair assumption that philosophical theories based on armchair intuitions are valid beyond the linguistic background against which they were developed.     

Beyond the Ethnic‐Civic Dichotomy: Cultural Citizenship as a New Way of Excluding Immigrants

In European Union (EU) countries, public debates about immigrants and citizenship are increasingly framed in cultural terms. Yet, there is no agreement within the citizenship literature on whether a cultural citizenship representation can be distinguished from the more established ethnic and civic representations and on how its measures relate to anti‐immigrant attitudes. The present study tested measures of citizenship representations among high school students (N = 1476) in six EU countries (Belgium, France, Germany, Hungary, the Netherlands, and Sweden). Factor analyses favored a three‐factor model of citizenship representations (i.e., ethnic, cultural, and civic factors), which showed partial metric invariance. Across countries, ethnic and cultural scales correlated positively with each other and negatively with the civic scale. Moreover, ethnic and cultural scales related positively and the civic scale negatively to anti‐immigrant attitudes. However, when analyzed simultaneously, relations of the ethnic scale with anti‐immigrant attitudes were no longer significant, while those of the cultural and civic scales proved to be robust. Implications of these findings are discussed.     

Testing the triple-match principle among technology employees

The triple-match principle (TMP) proposes that the strongest, interactive relationships between job demands and job resources are observed when job demands, job resources and job-related outcomes are based on qualitatively identical dimensions. This principle is tested with regard to three outcomes: cognitive failure, emotional exhaustion, and physical health complaints. Data were collected in a large sample of employees in the technology sector (n = 1533). Results demonstrate that the positive association between emotional job demands and emotional exhaustion is compensated by the availability of emotional job resources. No triple-match interactions are found with regard to cognitive failure or physical health complaints. In line with the TMP, results show that the likelihood of finding theoretically valid interactions is related to the degree of match between job demands, job resources, and outcomes.     

The importance of religiosity and values in predicting political attitudes: Evidence for the continuing importance of religiosity in Flanders (Belgium)

It has often been argued that religions influence political attitudes only indirectly by their influence on the value system of believers. This value system, in turn, is supposed to be used as a guideline in forming political attitudes. Thus, in this view, it should be sufficient to focus on value orientations if one wants to examine religion's influence on political attitudes. However, results of this study among first year psychology students (n=389), show that although value orientations hold greater predictive strength than religiosity towards political attitudes in Flanders (Belgium), religiosity, even apart from values, does provide additional information in predicting political attitudes. Thus, our results suggest that, at least in Flanders, religion, even apart from values, is still a politically important force. The most important value types, as measured by the Schwartz' Value Inventory (Schwartz, 1992), and religiosity dimensions, as measured by the Post-Critical Belief scale (Desimpelaere et al., 1999), associated with political attitudes were identified. Results show that each political attitude included in this study (economic conservatism, cultural conservatism, racism and nationalism) is predicted by a more or less unique pattern of religiosity dimensions and value orientations.     

Using trained pouched rats to detect land mines: another victory for operant conditioning

We used giant African pouched rats (Cricetomys gambianus) as land mine-detection animals in Mozambique because they have an excellent sense of smell, weigh too little to activate mines, and are native to sub-Saharan Africa, and therefore are resistant to local parasites and diseases. In 2009 the rats searched 93,400 m(2) of land, finding 41 mines and 54 other explosive devices. Humans with metal detectors found no additional mines. On average, the rats emitted 0.33 false alarm for every 100 m(2) searched, which is below the threshold given by International Mine Action Standards for accrediting mine-detection animals. These findings indicate that Cricetomys are accurate mine-detection animals and merit continued use in this capacity.     

Statistical Significance of the Contribution of Variables to the PCA solution: An Alternative Permutation Strategy

In this paper, the statistical significance of the contribution of variables to the principal components in principal components analysis (PCA) is assessed nonparametrically by the use of permutation tests. We compare a new strategy to a strategy used in previous research consisting of permuting the columns (variables) of a data matrix independently and concurrently, thus destroying the entire correlational structure of the data. This strategy is considered appropriate for assessing the significance of the PCA solution as a whole, but is not suitable for assessing the significance of the contribution of single variables. Alternatively, we propose a strategy involving permutation of one variable at a time, while keeping the other variables fixed. We compare the two approaches in a simulation study, considering proportions of Type I and Type II error. We use two corrections for multiple testing: the Bonferroni correction and controlling the False Discovery Rate (FDR). To assess the significance of the variance accounted for by the variables, permuting one variable at a time, combined with FDR correction, yields the most favorable results. This optimal strategy is applied to an empirical data set, and results are compared with bootstrap confidence intervals.