Demand Transitions and Sustained Attention

A recent report by the National Research Council (Huey & Wickens, 1993) has identified transitions in task demand as an important dimension for study in vigilance research. This experiment tested the possibility that the effects of such transitions follow a relatively simple psychophysical rule—they are characterized by contrast effects. Transitions in task demand were achieved by shifting subjects from single-task to dual-task monitoring and vice versa. These transitions produced changes in subjects' sensing and decision-making functions that were far more intricate than simple contrast effects. The demand transition issue offers a complex research challenge on both basic and applied levels and warrants further investigation.     

Delay Discounting as a Function of Intrinsic/Extrinsic Religiousness,Religious Fundamentalism,and Regular Church Attendance

Delay discounting occurs when the subjective value of an outcome decreases because its delivery is delayed. Previous research has suggested that the rate at which some, but not all, outcomes are discounted varies as a function of regular church attendance. In the present study, 509 participants completed measures of intrinsic religiousness, extrinsic religiousness, religious fundamentalism, and whether they regularly attended church services. They then completed a delay-discounting task involving five outcomes. Although religiousness was not a significant predictor of discounting for all outcomes, participants scoring high in intrinsic religiousness tended to display less delay discounting than participants scoring low. Likewise, participants scoring high in religious fundamentalism tended to display more delay discounting than participants scoring low. These results partially replicate previous ones in showing that the process of discounting may vary as a function of religiousness. The results also provide some direction for those interested in altering how individuals discount.     

Moral Virtue and Practical Wisdom: Theme Comprehension in Children,Youth, and Adults

The authors tested 3 hypotheses about the relation of moral comprehension to prudential comprehension by contrasting comprehension of themes in moral stories with comprehension of themes in prudential stories among third-grade, fifth-grade, and college students (n = 168) in Study 1, and among college students, young and middle-aged adults, and older adults (n = 96) in Study 2. In both studies, all groups were statistically significantly better at moral theme comprehension than prudential theme comprehension, suggesting that moral comprehension may develop prior to prudential comprehension. In Study 2, all groups performed equally on moral theme generation whereas both adult groups were significantly better than college students on prudential theme generation. Overall, the findings of these studies provide modest evidence that moral and prudential comprehension each develop separately, and that the latter may develop more slowly.     

Commentary: “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development,Psychopathology, and the Therapeutic Process” by Sidney J. Blatt

A commentary on Dr. Sidney J. Blatt's article, “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development, Psycho-pathology, and the Therapeutic Process” is presented by articulating Dr. Blatt's significant contribution to psychoanalysis, developmental and attachment theory, and therapeutic process research. According to Blatt's theory, normal maturation involves a complex reciprocal transaction between two developmental lines throughout the life cycle: (a) the establishment of stable, enduring, mutually satisfying interpersonal relationships and (b) the achievement of a differentiated, stable, and cohesive identity. He has applied this theory to understand both normal and pathological psychological phenomena, the latter resulting from disruptions in these developmental lines, resulting in an overemphasis on relational (anaclitic) or self-definitional (introjective) issues. Further, Dr. Blatt has evaluated his theoretical model through empirical study and demonstrated that relationally oriented and self-definitionally oriented persons have differential responses to psychotherapy. Finally, areas of question and potential for future research are outlined. Specifically, it is argued that although anaclitic and introjective configurations are easy to discuss as distinct types, relevant evidence from attachment theory raises the issue of whether these types may be better conceptualized as dimensions, with different configurations located within two-dimensional space. Further, findings of a group evidencing mixed anaclitic and introjective features raise additional questions about how these configurations relate to one another, and evidence from the attachment literature is used to shed light on this issue.     

Peer status in an ethnic context: Associations with African American adolescents' ethnic identity

This investigation examined the association between ethnic identity centrality and peer status for African American adolescents who represented a sizable proportion, yet numerical minority within a high school context. Initial analyses indicated that a traditional sociometric nomination procedure did not adequately characterize peer status for African American adolescents. A modified nomination procedure varying the ethnicity of nominators yielded measures of African American adolescents' peer acceptance/rejection and perceived popularity as rated by African American or European American peers. Results suggest that high levels of peer acceptance and popularity as rated by African American peers were associated with high ethnic identity centrality; however, acceptance and popularity as rated by European American peers were unrelated to ethnic identity centrality among African American adolescents. Findings suggest the importance of examining peer status of African American adolescents with consideration given to ethnicity as a relevant context.     

More men run relatively fast in U.S. road races, 1981-2006: a stable sex difference in non-elite runners

Recent studies indicate that more men than women run fast relative to sex- specific world records and that this sex difference has been historically stable in elite U.S. runners. These findings have been hypothesized to reflect an evolved male predisposition for enduring competitiveness in "show-off" domains. The current study tests this hypothesis in non-elite runners by analyzing 342 road races that occurred from 1981-2006, most in or near Buffalo, NY. Both absolutely and as a percentage of same-sex finishers, more men ran relatively fast in most races. During the 1980s, as female participation surged, the difference in the absolute number of relatively fast men and women decreased. However, this difference was stable for races that occurred after 1993. Since then, in any given race, about three to four times as many men as women ran relatively fast. The stable sex difference in relative performance shown here for non-elites constitutes new support for the hypothesis of an evolved male predisposition for enduring competitiveness.     

Effects of exposure to thin-ideal media images on body dissatisfaction: Testing the inclusion of a disclaimer versus warning label

The current study was designed to determine whether the inclusion of a disclaimer (i.e., “Retouched photograph aimed at changing a person's physical appearance.”) or warning (i.e., “Warning: Trying to look as thin as this model may be dangerous to your health.”) added to images of thin/attractive models would affect body dissatisfaction and intent to diet in female undergraduate students (n = 342). Participants were randomly assigned to one of four groups: (a) disclaimer, (b) warning, (c) model control, or (d) car control. Results revealed a significant interaction between group and time, whereby only the car control group reported a significant change (i.e., decrease) in body dissatisfaction over time. Groups did not differ on intent to diet measured at post-exposure. The results largely replicate other findings in this area and call into question advocacy efforts to label media images as a strategy to decrease women's identification with the stimuli.     

Optional stopping: No problem for Bayesians

Optional stopping refers to the practice of peeking at data and then, based on the results, deciding whether or not to continue an experiment. In the context of ordinary significance-testing analysis, optional stopping is discouraged, because it necessarily leads to increased type I error rates over nominal values. This article addresses whether optional stopping is problematic for Bayesian inference with Bayes factors. Statisticians who developed Bayesian methods thought not, but this wisdom has been challenged by recent simulation results of Yu, Sprenger, Thomas, and Dougherty (2013) and Sanborn and Hills (2013). In this article, I show through simulation that the interpretation of Bayesian quantities does not depend on the stopping rule. Researchers using Bayesian methods may employ optional stopping in their own research and may provide Bayesian analysis of secondary data regardless of the employed stopping rule. I emphasize here the proper interpretation of Bayesian quantities as measures of subjective belief on theoretical positions, the difference between frequentist and Bayesian interpretations, and the difficulty of using frequentist intuition to conceptualize the Bayesian approach.