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.     

Predictors of Anxiety and Depression in Emerging Adulthood

This study constructed a multifactorial model predicting depression and anxiety symptoms among emerging adults, incorporating broad constructs representing adult attachment style, perceived trauma, self-esteem, and irrational beliefs. In the final structural equation model, attachment avoidance and perceived trauma demonstrated direct and indirect effects, whereas attachment anxiety predicted depression only indirectly through low self-esteem or irrational beliefs, and chronic anxiety. Chronic anxiety played a crucial role in linking low self-esteem and irrational beliefs to depression. The theoretical and clinical implications of the findings are discussed.     

Does the truth interfere with our ability to deceive?

Does the truth interfere with our ability to respond deceptively? We considered this question in the present study by examining the effects of a task set (i.e., selecting truthful or untruthful responses), both by comparing two presentations of the same task and through transfer to a different task. All participants carried out the task either under the instructions to respond both correctly and incorrectly (Experiment 1) or under the instructions to respond truthfully and deceptively (Experiment 2); the order of instructions was counterbalanced. In Experiment 2, after completing the main task, the participants also performed a Stroop task. The findings suggested that deceptive responses took longer overall, regardless of the order of instructions. Moreover, the experience of responding deceptively versus truthfully led to faster responding on a subsequent Stroop test. Although there may well be processes unique to deceptive responding, the evidence suggests that overcoming interference is a process shared by deceptive and nondeceptive tasks. orrespondence     

Robust ANCOVA using a smoother with bootstrap bagging

Many robust analogs of the classic analysis of covariance (ANCOVA) method have been proposed, some of which are based on some type of regression smoother. A method that first appeared in this journal, which is relatively simple and performs well in simulations, is based on a running interval smoother combined with comparing medians or 20% trimmed means. It makes no parametric assumption about the regression lines and does not assume that the regression lines are parallel. A possible way of improving the efficiency of the running interval smoother is to use bootstrap bagging and a minor goal here is to report some results supporting this approach. The major goal is to consider how ANCOVA might be performed when bootstrap bagging is used. Simple extensions of extant approaches that use some type of bootstrap method were found to be unsatisfactory. However, a basic percentile bootstrap method was found to perform well in simulations. And a reanalysis of data dealing with teachers' expectations about the cognitive ability of students illustrates that bootstrap bagging can make a practical difference.     

The survival of a cooperative tradition in the intergroup discontinuity context

Interindividual-intergroup discontinuity is the tendency, in mixed-motive situations, for groups to interact more competitively, or less cooperatively, than individuals, even though mutual competition yields worse results that mutual cooperation. The present laboratory experiment attempted to assess whether the discontinuity effect could be reduced by the establishment of an intergroup cooperative tradition. Cooperation between intact pairs of groups was induced by placing in each group confederates who successfully convinced their fellow group members of the long-term advantage of trust and cooperation. On subsequent blocks of trails, the confederate was replaced by an actual subject, and then each of the original subjects was replaced so as to simulate generational turnover. By the time all initial members were replaced, their level of cooperation had eroded to the level of groups never experiencing mutual cooperation. The results are discussed in the context of other means of reducing discontinuity. This research was supported by National Science Foundation grants (BNS-9007414 and SBR-9408760) to John Schopler and Chester A. Insko.     

AGE AND GENDER IN RELATION TO BODY ATTITUDES

In order to examine whether the double standard of aging exists in self-perceptions of body attitudes, 144 men and women aged 20 to 80 years were tested. Variables that might moderate the relationship between body attitudes and aging, including self-esteem, health, masculinity, appearance orientation, and exercise participation were also examined. No age, gender, nor Age × Gender differences in body attitudes were found. Self-esteem, health, and masculinity were positively related to body attitudes, but these relationships did not vary according to age or gender. An Age × Gender × Exercise interaction indicated a positive relationship between age and body satisfaction among women exercisers but a negative relationship among women nonexercisers. Finally, appearance orientation was unrelated to body attitudes among all participants. The results of this study do not support the double standard of aging in self-perceptions but do suggest the similarity and importance of body attitudes across the adult life span.     

Toward a Model Informed Consent Process for BRCA1 Testing: A Qualitative Assessment of Women's Attitudes

As an initial part of a project to develop a model informed consent process for BRCA1 testing, we conducted a series of focus groups. At the groups, women initially expressed great interest in testing, but their interest diminished after learning more. If offered testing, women would most want to learn about test accuracy, practical details of testing, and management options if the result was positive. Perceived benefits of testing included gaining information leading to risk reduction, relief of uncertainty, more responsible parenting, and assisting in research. Perceived risks included the discomfort and cost of the testing process itself, and anxiety after a positive result. The risk of possible insurance discrimination was rarely mentioned spontaneously. Many women would want their providers to make recommendations, rather than be nondirective about testing. We observed that women vary greatly in their informational and counseling needs, and suggest that the informed consent process should be individualized, taking into account a woman's perception and her preferences for how testing decisions should be made.     

Comparing one-step m-estimators of location corresponding to two independent groups

Experience with real data indicates that psychometric measures often have heavy-tailed distributions. This is known to be a serious problem when comparing the means of two independent groups because heavy-tailed distributions can have a serious effect on power. Another problem that is common in some areas is outliers. This paper suggests an approach to these problems based on the one-step M-estimator of location. Simulations indicate that the new procedure provides very good control over the probability of a Type I error even when distributions are skewed, have different shapes, and the variances are unequal. Moreover, the new procedure has considerably more power than Welch's method when distributions have heavy tails, and it compares well to Yuen's method for comparing trimmed means. Wilcox's median procedure has about the same power as the proposed procedure, but Wilcox's method is based on a statistic that has a finite sample breakdown point of only 1/n, wheren is the sample size. Comments on other methods for comparing groups are also included.