Recognition memory processes and language dominance in bilingualism

Contradictory evidence exists concerning the mode by which a fluent bilingual stores and retrieves words in each of his languages. A study of linguistically mixed lists by a procedure where errors in judgment could be detected suggests that storage is shared but is organized and retrieved primarily through the bilinguals' first language.This work was supported in part by NICHD Research Career Development Award No. HD 36835 to the author.     

The contact hypothesis revisited: status bias in the reduction of implicit prejudice in the United States and Lebanon

Although 50 years of research demonstrate that friendly intergroup contact reduces intergroup prejudice, the findings are based solely on self-reported, explicit prejudice. In two parallel experiments examining intergroup contact and prejudice-between Whites and Blacks in the United States (Experiment 1) and between Christians and Muslims in Lebanon (Experiment 2)-we examined whether intergroup status differences moderate contact effects on implicit prejudice, as well as explicit prejudice. Both experiments replicated the standard effect of contact on explicit prejudice. They also demonstrated that intergroup contact reduces implicit prejudice among low-status groups. In Experiment 1, the implicit prejudice of Blacks toward Whites (but not Whites toward Blacks) was reduced as a function of friendly contact. In Experiment 2, the implicit prejudice of Muslims toward Christians (but not Christians toward Muslims) was reduced as a function of friendly contact.     

The regional genetic and newborn screening service collaboratives: the first two years

Newborn screening and genetic technologies are expanding and changing rapidly, increasing the demand for genetic specialty services. Because of the scarcity and geographic maldistribution of genetic specialty services, access to these services is a critical issue. This article discusses some of the efforts initiated by the Maternal and Child Health Bureau of the Health Resources and Services Administration, particularly the establishment of regional genetic and newborn screening collaboratives to improve access to these services and expertise.     

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Book Review

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Gender Differences in Cheating Attitudes and Classroom Cheating Behavior: A Meta-Analysis

Although academic dishonesty is a major problemin American colleges and universities, relatively littleresearch has investigated gender differences incheating. Based on the differential socialization theory of gender differences in moral reasoning(e.g., Chodorow, 1989; Gilligan, 1982) we expected that,compared to women, men would report more favorableattitudes toward cheating and more cheating behavior. We conducted a meta-analysis that included 8studies of gender differences in attitudes towardcheating, 34 studies of gender differences in cheatingbehavior, and 6 studies that investigated both attitudes and behavior. Although the mean effect size forgender differences in attitudes was of moderatemagnitude, equivalent to a correlation of r = .21, themean effect size for behavior was small, equivalent to r = .08. Behavior effect sizes also varied asa function of field of study, method of data collection,and country in which the study was conducted. We discussthe implications of our results for future research on gender differences in academicdishonesty.     

Binocular processing of brightness information: a vector-sum model

The relation between monocular and binocular brightness was examined. Clear evidence was found that the interaction between visual channels in binocular processing of brightness information implicates both an apparent averaging of monocular brightness when they are grossly different and a partial summation when they approach equality. A vector-sum model is shown to predict these properties. A nonmetric method was used to fit such a model to data from three experiments in each of which 15 subjects estimated brightness of binocularly fused targets. Magnitude estimation was used in two experiments, and cateogry ratings were obtained in the third experiment. When it was assumed only that subjects' responses were monotone with perceived brightness, estimates of the model's parameters from the data of the three experiments were almost identical, indicating that results from magnitude estimati;n and category rating can converge once nonlinear response functions are eliminated.     

Developmental differences in cognitive mapping: Configurational knowledge of familiar large-scale environments

In order to investigate the development of cognitive mapping of familiar large-scale environments. First-, fifth-, and eighth-grade children were asked to make bearing and distance estimates to six targets from three sighting locations in their school. Correlations between estimated and actual bearings and distances were extremely high at all grade levels, indicating that (a) children at all grade levels could reliably make such estimates, and (b) route knowledge of even the youngest children was quite high. Bearing accuracy increased between first- and fifth-grade and showed little improvement thereafter. Increases in a measure of configurational accuracy were found between first- and fifth-grade and between fifth- and eighth-grade. Differential accuracy as a function of the demands of particular sighting locations was found only for the younger children.     

Success and Failure, Gender Differences, and the Menstrual Cycle

Eighty-one women and 26 men were led to succeed or fail at a task. No differences in actual performance were found between men and women or among women in different menstrual phases. Although they had participated alone, women felt worse, less competent, and less "up" than men after both success and failure. After success women also felt less satisfied, felt they had made lower scores, expected to perform worse, and rewarded themselves less than men. After success, women who were menstruating at the time of the experiment reported feeling better than women in other menstrual phases on most measures. A possible explanation was that menstruating women may have expected to perform poorly.