A Comparison of “Direct” Versus “Derived” Extinction of Avoidance Responding

The Psychological Record - To establish a series of derived relations between arbitrary stimuli, 20 subjects were exposed to nonarbitrary and arbitrary relational training and testing procedures....     

Modeling lexical decision: the form of frequency and diversity effects

What is the root cause of word frequency effects on lexical decision times? W. S. Murray and K. I. Forster (2004) argued that such effects are linear in rank frequency, consistent with a serial search model of lexical access. In this article, the authors (a) describe a method of testing models of such effects that takes into account the possibility of parametric overfitting; (b) illustrate the effect of corpus choice on estimates of rank frequency; (c) give derivations of nine functional forms as predictions of models of lexical decision; (d) detail the assessment of these models and the rank model against existing data regarding the functional form of frequency effects; and (e) report further assessments using contextual diversity, a factor confounded with word frequency. The relationship between the occurrence distribution of words and lexical decision latencies to those words does not appear compatible with the rank hypothesis, undermining the case for serial search models of lexical access. Three transformations of contextual diversity based on extensions of instance models do, however, remain as plausible explanations of the effect.     

Generalization of positive attitude as a function of subgroup and superordinate group identifications in intergroup contact

The role of category salience in mediating the effects of intergroup contact was examined. One theoretical model proposes that some psychological salience of subgroup categories is necessary to facilitate the generalization of attitude change beyond the immediate contact situation. Another argues that a re‐categorization of the subgroups into a new superordinate category is more beneficial, whilst a third suggests that de‐categorizing the situation entirely is optimal. An alternative view, which combines the first two models, proposes a Dual Identity strategy (simultaneous high superordinate and high subgroup categorization) as an important mediator of the relationship between contact variables and intergroup attitudes. In the study, participants (N = 114) undertook a cooperative intergroup task under four conditions of category salience: ‘subgroup’, ‘superordinate’, ‘superordinate and subgroup’, and ‘no group salience’. Evaluative ratings and symbolic reward allocations both for the groups encountered (contact) and those outside the situation (generalization) provided measures of intergroup bias. Bias within the contact situation was mainly eliminated in all conditions. However, on the more generalized bias measures, only the ‘superordinate’ and ‘superordinate and subgroup’ (Dual Identity strategy) conditions maintained this low level; in the other two conditions intergroup bias resurfaced. A combination of the first two models is proposed. Copyright © 2002 John Wiley & Sons, Ltd.     

Teleo‐functional constraints on preschool children's reasoning about living things

These studies explore the degree to which preschool children employ teleological‐functional reasoning – reasoning based on the assumption of function and design – when making inferences about animal behavior. Using a triad induction method, Study 1 examined whether a sensitivity to biological function would lead children to overlook overall similarity and instead attend to relevant functional cues (in the presence of overall dissimilarity), as a basis for generalizing behavioral properties to unfamiliar animals. It found that, between 3 and 4 years of age, children, with increasing consistency, attend to functional features rather than overall similarity when drawing inferences about animal behavior. Children's ability to describe the relevance of functional adaptations to animal behavior also increased with age. Study 2 explored whether Study 1 findings might result from stimulus biases in favor of the function‐based choice. It found that children's attention shifted from functional features to overall similarity when generalizing labels rather than behaviors with the same triads. These results are discussed in relation to the development of biological knowledge.     

Critical ingredients of career choice interventions: More analyses and new hypotheses

Recent meta-analyses of the career choice intervention literature (Brown & Ryan Krane, 2000; Ryan, 1999) identified five intervention ingredients that were individually associated with career choice outcome, and collectively were linearly related to increases in career choice effect sizes. In this article, we summarize these meta-analytic findings, present analyses that further confirm these ingredients’ importance, and present some hypotheses to define each of the critical ingredients and suggest how they might be implemented to maximize their effectiveness.     

The Effect of Reducing Opportunities for Downward Comparison on Comparative Optimism

Comparative optimism is a pervasive tendency for people to rate personal future prospects more favorably than those of comparable others. This may be caused by deliberately choosing targets on the basis of vulnerability. Restricting the range of comparison targets reduces the opportunity to make downward comparisons and should reduce comparative optimism. We asked 100 undergraduates to assemble a list of other students known to them. Participants estimated their personal risk of being victim of a road crash and skin cancer, and estimated the risk of 2 targets from the list. The participant selected one target, while the experimenter randomly chose the other target. Comparative optimism was greater in the participant-selected target condition, and this effect was almost exclusive to participants who reported making downward comparisons. We concluded that downward comparison processes could affect comparative optimism when targets are individual people.     

Teammates On and Off the Field? Contact With Black Teammates and the Racial Attitudes of White Student Athletes1

The intergroup contact hypothesis holds that proximate, cooperative interactions on an equalized basis between Blacks and Whites can minimize Whites’ prejudice (Allport, 1954). This experiment investigated the effect of contact between White and Black high school teammates on White student athletes’ racial attitudes. Using the 1996 Social and Group Experiences (SAGE) survey (created by the authors and administered in the Fall of 1996) commissioned by the National Collegiate Athletic Association, the results indicated a significant relationship between amount of contact with Black teammates in high school and racial policy support and affect, depending on the type of sport played. White student athletes playing team sports who had higher percentages of Blacks as high school teammates expressed more policy support for and greater positive affect toward Blacks as a group than did their counterparts playing individual sports. The role of athletic experiences in changing racial attitudes is discussed.     

Stigma on my mind: Individual differences in the experience of stereotype threat

Stereotyped individuals vary in how chronically self-conscious they are of their stigmatized status, which Pinel (1999) has dubbed stigma consciousness. The current study investigated whether individual differences in stigma consciousness moderate the impact of gender stereotypes on the math performance of women. Results indicated that, under conditions designed to evoke stereotype threat (Steele, 1997), women high in stigma consciousness scored worse than women low in stigma consciousness on a math test. In the control (low threat) condition, stigma consciousness was unrelated to test performance. Possible mechanisms underlying this moderation are discussed.     

Book Reviews

Book Reviewed
The Politics of Cultural Differences. By David C. Leege, Kenneth D. Wald, Brian S. Krueger, and Paul D. Mueller. Princeton, NJ: Princeton University Press. 2002. 304 pp. $21.95 paper, $60 cloth.
The Psychological Assessment of Political Leaders. Edited by Jerrold M. Post, M.D. Ann Arbor, MI: University of Michigan Press. 2003. 412 pp.
FDR's Body Politics: The Rhetoric of Disability. By Davis W. Houck and Amos Kiewe. College Station, TX: Texas A&M University Press. 2003. 141 + xii pp.
The Power of Legitimacy: Assessing the Role of Norms in Crisis Bargaining. By Christopher Gelpi. Princeton, NJ: Princeton University Press. 2003. 232 pp. $39.50.