Culture: Copying,Compression, and Conventionality

Through cultural transmission, repeated learning by new individuals transforms cultural information, which tends to become increasingly compressible (Kirby, Cornish, & Smith, 2008 ; Smith, Tamariz, & Kirby, 2013 ). Existing diffusion chain studies include in their design two processes that could be responsible for this tendency: learning (storing patterns in memory) and reproducing (producing the patterns again). This paper manipulates the presence of learning in a simple iterated drawing design experiment. We find that learning seems to be the causal factor behind the increase in compressibility observed in the transmitted information, while reproducing is a source of random heritable innovations. Only a theory invoking these two aspects of cultural learning will be able to explain human culture's fundamental balance between stability and innovation.     

Can Culture Influence Body‐Specific Associations Between Space and Valence?

People implicitly associate positive ideas with their dominant side of space and negative ideas with their non‐dominant side. Right‐handers tend to associate “good” with “right” and “bad” with “left,” but left‐handers associate “bad” with “right” and “good” with “left.” Whereas right‐handers' implicit associations align with idioms in language and culture that link “good” with “right,” left‐handers' implicit associations go against them. Can cultural conventions modulate the body‐specific association between valence and left‐right space? Here, we compared people from Spanish and Moroccan cultures, which differ in the strength of taboos against the use of the left hand, and therefore in their preference for the right. Results showed stronger explicit associations between space and valence in Moroccan participants than in Spaniards, but they did not show any increased tendency for right‐handed Moroccans to associate “good” with “right” implicitly. Despite differences in cultural conventions between Spaniards and Moroccans, we find no evidence for a cross‐cultural difference in the implicit association between space and valence, which appears to depend on patterns of bodily experience.     

Differences in the Between‐Person and Within‐Person Structures of Affect Are a Matter of Degree

This study tested whether the structure of affect observed on the basis of between‐person (BP) differences is equivalent to the affect structures that organize the variability of affective states within persons (WP) over time. Further aims were to identify individual differences in the degree of divergence between the WP and BP structure and examine its association to dispositional and contextual variables (neuroticism, extraversion, well‐being and stress). In 100 daily sessions, 101 younger adults rated their mood on the Positive and Negative Affect Schedule. Variability of five negative affect items across time was so low that they were excluded from the analyses. We thus worked with a modified negative affect subscale. WP affect structures diverged reliably from the BP structure, with individual differences in the degree of divergence. Differences in the WP structural characteristics and the degree of divergence could be predicted by well‐being and stress. We conclude that BP and WP structures of affect are not equivalent and that BP and WP variation should be considered as distinct phenomena. It would be wrong, for example, to conceive of positive and negative affect as independent at the WP level, as suggested by BP findings. Yet, individual differences in WP structural characteristics are related to stable BP differences, and the degree to which individuals' affect structures diverge from the BP structure can provide important insights into intraindividual functioning. Copyright © 2014 European Association of Personality Psychology     

A culture-sensitive approach in the development of the Career Adapt-Abilities Scale in Iceland: Theoretical and operational considerations

The aim of this study was to develop a culturally sensitive version of the Career Adapt-Ability Scale (CAAS) in Iceland. First the translated international version of the 55-item CAAI designed to measure the four dimensions of career adaptability (concern, curiosity, control, and confidence) plus additional dimension called co-operation was administered to a sample of 491 secondary school students. Confirmatory factor analysis indicated that both the four- and five-dimensional model show an adequate fit in the sample. An emic evaluation of the international model indicated that new facets tentatively called fatalism and contribution might be relevant in Iceland. New contextualized Icelandic items were written resulting in a combined 89-item measure of international and indigenous items administered to a sample of 1249 university students. Exploratory factor analysis supported contribution as a separate dimension and was used to create Icelandic scales measuring six dimensions: co-operation, contribution, and the four original dimensions. Confirmatory factor analysis supported the fit of three alternative 4–6-dimensional international and Icelandic models and measures of career adaptability in Iceland. An emic approach is needed to understand the cultural specificity and universal aspects of career adaptability and to develop culturally sensitive measures for use in career counseling. Further research on co-operation and contribution as relational constructs is suggested.     

Using Cook's distance in polytomous logistic regression

The previously unknown asymptotic distribution of Cook's distance in polytomous logistic regression is established as a linear combination of independent chi‐square random variables with one degree of freedom. An exhaustive approach to the analysis of influential covariates is developed and a new measure for the accuracy of predictions based on such a distribution is provided. Two examples with real data sets (one with continuous covariates and the other with both qualitative and quantitative covariates) are presented to illustrate the approach developed.