Recurrent Personality Dimensions in Inclusive Lexical Studies: Indications for a Big Six Structure

ABSTRACT Previous evidence for both the Big Five and the alternative six-factor model has been drawn from lexical studies with relatively narrow selections of attributes. This study examined factors from previous lexical studies using a wider selection of attributes in 7 languages (Chinese, English, Filipino, Greek, Hebrew, Spanish, and Turkish) and found 6 recurrent factors, each with common conceptual content across most of the studies. The previous narrow-selection-based six-factor model outperformed the Big Five in capturing the content of the 6 recurrent wideband factors. Adjective markers of the 6 recurrent wideband factors showed substantial incremental prediction of important criterion variables over and above the Big Five. Correspondence between wideband 6 and narrowband 6 factors indicate they are variants of a "Big Six" model that is more general across variable-selection procedures and may be more general across languages and populations.     

Two Steps Forward,One Step Back: The Presence of Female Characters and Gender Stereotyping in Award-Winning Picture Books Between the 1930s and the 1960s

Since the late 1960s, there has been steady, progressive change in the depiction of gender in award-winning picture books for children (e.g., Clark, Almeida, Gurka, & Middleton, 2003). Female characters in Caldecott winners and runners-up have become increasingly visible and gender stereotyping has become decreasingly evident. In this article we consider whether this steady change can be projected back into the decades before the 1960s, or whether local, temporal variation in gender norms affected less monotonic change. We found that Caldecotts of the late 1940s and the late 1960s had fewer visible female characters than Caldecotts of the late 1930s and the late 1950s, but that characters in the 1940s and 1960s were less gender stereotyped than the characters of the 1930s and 1950s. We interpret these findings in terms of the greater level of conflict over gender roles that existed in the 1940s and 1960s, as well as the relatively greater status enjoyed by American women in those decades.     

Gone too far—or not far enough? Comments on the article by Ashton and Lee (2001)

Ashton and Lee argue that Honesty should be added to the Big Five model of personality as a sixth factor, and present a theoretical framework for interpreting Big Five factors and Honesty that helps make sense of the proposed six‐factor structure. The attempt by Ashton and Lee to go beyond the Big Five is applauded, but numerous problems are evident. Adding Honesty to the Big Five is plausible only if one ignores key assumptions that the Big Five model consists of independent factors that are candidates for pervasive lexical universals. The proposal does not take into account significant deviations from the Anglo‐Germanic Big Five that have occurred in emic studies of languages having their origin outside of northern Europe, nor potential substantive interpretations of the widely replicated Negative Valence factor. Future studies should seek improvements or alternatives to the Big Five in a way that keeps constituent factors well discriminated from one another and enhances the likelihood of ubiquity across diverse languages and cultures. Copyright © 2002 John Wiley & Sons, Ltd.     

Sex differences in object location memory and spatial navigation in Long-Evans rats

In both humans and rodents, males typically excel on a number of tasks requiring spatial ability. However, human females exhibit advantages in memory for the spatial location of objects. This study investigated whether rats would exhibit similar sex differences on a task of object location memory (OLM) and on the watermaze (WM). We predicted that females should outperform males on the OLM task and that males should outperform females on the WM. To control for possible effects of housing environment, rats were housed in either complex environments or in standard shoebox housing. Eighty Long-Evans rats (40 males and 40 females) were housed in either complex (Complex rats) or standard shoebox housing (Control rats). Results indicated that males had superior performance on the WM, whereas females outperformed males on the OLM task, regardless of housing environment. As these sex differences cannot be easily attributed to differences in cognitive style related to linguistic processing of environmental features or to selection pressures related to the hunting gathering evolutionary prehistory of humans, these data suggest that sex differences in spatial ability may be related to traits selected for by polygynous mating strategies.     

Testing the measurement equivalence of personality adjective items across cultures

Although previous research has examined cross-cultural differences in personality, many of these studies neglected to first establish that the measures being used were equivalent in meaning across cultures. Using samples of Chinese, Greek, and American respondents, the measurement equivalence of the Big Five Mini-Markers [Saucier, G. (1994). Mini-markers: A brief version of Goldberg’s unipolar Big-Five markers. Journal of Personality assessment, 63, 506–516] was assessed using confirmatory factor analysis. The results indicate that all of the scales demonstrate configural invariance, but fail to show metric or scalar invariance. Several adjectives from these scales were found to exhibit bias at the item-level. The practical implications of these results are discussed and future research is suggested.     

Right-hemispheric dominance for processing extended non-linguistic frequency transitions

The left hemisphere is specialized for most linguistic tasks and the right hemisphere is specialized for many non-linguistic tasks, but the cause of these functional asymmetries is unknown. One of the stimulus factors that appears to influence these asymmetries is the rate at which stimuli change. In the present experiment, 41 participants completed the Fused Dichotic Words Test (FDWT) and a non-linguistic Frequency Transition Task (FTT) wherein the Frequency Transitions (FTs) were either rapid (40 ms) or relatively slow (200 ms). There was a right hemisphere advantage for slow FTs when the change was at the front of the stimulus, but no corresponding left hemisphere advantage for the rapid FTs. There was no relationship between either FTT and the left hemisphere advantage exhibited on the FDWT. This finding provides support for the position that the right hemisphere dominates tasks that require temporal processing over relatively long periods of time.     

Men are more accurate than women in aiming at targets in both near space and extrapersonal space

Men excel at motor tasks requiring aiming accuracy whereas women excel at different tasks requiring fine motor skill. However, these tasks are confounded with proximity to the body, as fine motor tasks are performed proximally and aiming tasks are directed at distal targets. As such, it is not known whether the male advantage on tasks requiring aiming accuracy is because men have better aim or is better in the proximal domain in which the task is usually presented. 18 men (M age = 20.6 yr., SD = 3.0) and 20 women (M age = 18.7 yr., SD = 0.9) performed 2 tasks of extrapersonal aiming accuracy (>2 m away), 2 tasks of aiming accuracy performed in near space (< 1 m from them), and a task of fine motor skill. Men outperformed women on both the extrapersonal aiming tasks, and women outperformed men on the task of fine motor skill. However, a male advantage was observed for one of the aiming tasks performed in near space, suggesting that the male advantage for aiming accuracy does not result from proximity.     

Laterality of phonological working memory: dependence on type of stimulus,memory load,and sex

Investigations of the laterality of phonological working memory have not always yielded consistent results. The present experiment investigated working memory for letters and numbers in two memory load conditions. In the low load condition, working memory for letters and numbers was similar. However, in the high load condition, males were more accurate at the recall of letters. This effect was not observed with numbers, in which both sexes performed more poorly. Furthermore, we observed consistent RVF advantages for both tasks, although males were more asymmetrical for the recall of letters and females were more asymmetrical for the recall of numbers. This result indicates that laterality of working memory for letters and numbers differs, and these asymmetries depend upon the sex of the participant.