The relationship of instrumentality and expressiveness to sexual behavior in males and females

In a study of the relationship between gender-relevant personality attributes and sexuality, 259 unmarried males and females completed the short form of the Bem Sex Role Inventory and a detailed survey of their sexual experiences. Multiple regression analyses showed that, for both men and women, instrumental personality attributes were associated with greater sexual experience, including the frequency of sexual intercourse and oral sex, the number of sexual partners, the age at which respondents first had sex, and more relaxed feelings about having sex. Further, interactions of instrumentality and expressiveness revealed that women who scored high in instrumentality but low in expressiveness were consistently more sexually active and experienced than other groups.     

Markov processes in learning theory

Consideration is given mathematical problems arising in two learning theories—one developed by Bush and Mosteller, the other developed by Estes. The theory of Bush and Mosteller leads to a class of Markov processes which have been studied in considerable detail (see [1] and [7]). The Estes model can be treated as a Markov chain, i.e., a Markov process with a finite number of states. For an important class of special cases, it is shown that the Bush-Mosteller model is, in a sense, a limiting form of the Estes model. The limiting probability distributions are derived for the cases treated in both models.This research was supported by the National Science Foundation through a grant given to the Dartmouth Mathematics Project.     

Combining group-based trajectory modeling and propensity score matching for causal inferences in nonexperimental longitudinal data

A central theme of research on human development and psychopathology is whether a therapeutic intervention or a turning-point event, such as a family break-up, alters the trajectory of the behavior under study. This article describes and applies a method for using observational longitudinal data to make more transparent causal inferences about the impact of such events on developmental trajectories. The method combines 2 distinct lines of research: work on the use of finite mixture modeling to analyze developmental trajectories and work on propensity score matching. The propensity scores are used to balance observed covariates and the trajectory groups are used to control pretreatment measures of response. The trajectory groups also aid in characterizing classes of subjects for which no good matches are available. The approach is demonstrated with an analysis of the impact of gang membership on violent delinquency based on data from a large longitudinal study conducted in Montréal, Canada.     

Evaluations and Aggression Directed at a Gay Male Target: The Role of Threat and Antigay Prejudice1

This research was designed to understand heterosexual men's interpersonal reactions toward a gay male individual and to examine how threat and pre‐existing antigay prejudice impact these encounters. In one experiment, we manipulated the ostensible sexual orientation of an assigned work partner and assessed participants' perceptions of threat indirectly, using a measure of psychological distancing. Results revealed that, regardless of antigay prejudice, participants psychologically distanced more from the gay male than from the heterosexual male. In the second experiment, we manipulated threat and the sexual orientation of the work partner to examine aggressive responding toward the work partner. Participants exposed to a threat to their masculinity behaved more aggressively toward the gay work partner, regardless of their level of antigay prejudice.     

Assessing Belief in the 10 Commandments: The Multidimensional 10 Commandments Questionnaire

Instruments designed to assess various aspects of religion are widespread, but few have been constructed to assess specific religious values and beliefs. The purpose of the present research was to address this limitation by providing preliminary evidence for the reliability and validity of the Multidimensional 10 Commandments Questionnaire (M10CQ), a self-report instrument that measures belief in the 10 Commandments. Data from three separate samples provided evidence supporting the reliability (i.e., internal consistency) of the M10CQ subscales. Other results indicated that women endorsed many of the 10 Commandments more strongly than men, and that various Commandments predicted people’s mental health (less hostility), their parenting style (more authoritarian and authoritative parenting), and their interpersonal attachments (a more trusting bond with others). The findings reported in this research help to identify the ways in which religious values and beliefs are integrated with multiple aspects of people’s lives. The discussion highlights the usefulness of the Multidimensional 10 Commandments Questionnaire (M10CQ) for studying religious beliefs and values.

Taking a long look at action and time perception

Everyone has probably experienced chronostasis, an illusion of time that can cause a clock's second hand to appear to stand still during an eye movement. Though the illusion was initially thought to reflect a mechanism for preserving perceptual continuity during eye movements, an alternative hypothesis has been advanced that overestimation of time might be a general effect of any action. Contrary to both of these hypotheses, the experiments reported here suggest that distortions of time perception related to an eye movement are not distinct from temporal distortions for other kinds of responses. Moreover, voluntary action is neither necessary nor sufficient for overestimation effects. These results lead to a new interpretation of chronostasis based on the role of attention and memory in time estimation.     

Views on Abortion: A Comparison of Female Genetic Counselors and Women from the General Population

While literature characterizing individual genetic counselors’ abortion attitudes is sparse, the National Society of Genetic Counselors takes a clear stance for reproductive autonomy. To determine genetic counselors’ views, this study compared (1) genetic counselors’ abortion attitudes to those of women from the general population and (2) genetic counselors’ professional abortion attitudes to their personal abortion attitudes. Genetic counselors were invited to complete an online survey. Response rate was 44.3% (709/1,601). Compared to women from the general population, female genetic counselors were significantly more likely to agree abortion should be an option in all cases (p < .001). Controlling for other possible confounders, regression analyses revealed that being a genetic counselor, religious service attendance and age were significantly predictive of abortion attitudes. Although the vast majority of genetic counselors agree that abortion should be available, they are significantly less likely to personally consider abortion under all circumstances presented (p < .001), and the percentage of genetic counselors who would consider terminating in the case of a severe birth defect is similar to studies of other women.     

The effects of local and global processing orientation on eyewitness identification performance

Recent work has demonstrated that performance on a simultaneous target-present photographic line-up can be enhanced by prior global processing orientation, and hindered by prior local processing orientation induced by processing Navon letter stimuli. A series of studies explore the generality of this processing bias effect using either videotaped scenarios or live interactions. Five experiments demonstrate that these effects are seen across a range of test stimuli, test formats, and test instructions.These data inform the processes engaged in by witnesses when making line-up identifications and indicate that it may be possible to improve the accuracy of witnesses making such judgements.     

The time course of attentional and oculomotor capture reveals a common cause

Eye movements are often misdirected toward a distractor when it appears abruptly, an effect known as oculomotor capture. Fundamental differences between eye movements and attention have led to questions about the relationship of oculomotor capture to the more general effect of sudden onsets on performance, known as attentional capture. This study explores that issue by examining the time course of eye movements and manual localization responses to targets in the presence of sudden-onset distractors. The results demonstrate that for both response types, the proportion of trials on which responses are erroneously directed to sudden onsets reflects the quality of information about the visual display at a given point in time. Oculomotor capture appears to be a specific instance of a more general attentional capture effect. Differences and similarities between the two types of capture can be explained by the critical idea that the quality of information about a visual display changes over time and that different response systems tend to access this information at different moments in time.     

Poorer divided attention in children born very preterm can be explained by difficulty with each component task,not the executive requirement to dual-task

Children born very preterm (VP, ≤ 32 weeks) exhibit poor performance on tasks of executive functioning. However, it is largely unknown whether this reflects the cumulative impact of non-executive deficits or a separable impairment in executive-level abilities. A dual-task paradigm was used in the current study to differentiate the executive processes involved in performing two simple attention tasks simultaneously. The executive-level contribution to performance was indexed by the within-subject cost incurred to single-task performance under dual-task conditions, termed dual-task cost. The participants included 77 VP children (mean age: 7.17 years) and 74 peer controls (mean age: 7.16 years) who completed Sky Search (selective attention), Score (sustained attention) and Sky Search DT (divided attention) from the Test of Everyday Attention for Children. The divided-attention task requires the simultaneous performance of the selective- and sustained-attention tasks. The VP group exhibited poorer performance on the selective- and divided-attention tasks, and showed a strong trend toward poorer performance on the sustained-attention task. However, there were no significant group differences in dual-task cost. These results suggest a cumulative impact of vulnerable lower-level cognitive processes on dual-tasking or divided attention in VP children, and fail to support the hypothesis that VP children show a separable impairment in executive-level abilities.