The explanatory dispensability of idealizations

Enhanced indispensability arguments seek to establish realism about mathematics based on the explanatory role that mathematics plays in science. Idealizations pose a problem for such arguments. Idealizations, in a similar way to mathematics, boost the explanatory credentials of our best scientific theories. And yet, idealizations are not the sorts of things that are supposed to attract a realist attitude. I argue that the explanatory symmetry between idealizations and mathematics can potentially be broken as follows: although idealizations contribute to the explanatory power of our best theories, they do not carry the explanatory load. It is at least open however that mathematics is load-carrying. To give this idea substance, I offer an analysis of what it is to carry the explanatory load in terms of difference-making and counterfactuals.     

Stimulus Determinants of Aggregative Behavior in the Domestic Chicken

Identity status and self-esteem were determined for 88 undergraduate college women. Identity status was measured two ways: with the sexual values questions included, and with the ORP (occupational goals, religious ideology, and political ideology) interview alone. Significant differences in self-esteem as measured by the Texas Social Behavior Inventory (TSBI) were found for women in the four identity statuses. These differences were significant on the basis of both methods of identity assessment. Achievement women scored higher than Moratorium and Diffusion women, but not Foreclosure women. Moratorium women had the lowest self-esteem in the sample. Results were discussed as supportive of the notion that achievement of identity is enhancing of self-esteem in women, and that nontraditional areas of identity development are becoming more important determiners of adjustment in women. The differential adaptability of Moratorium and Foreclosure statuses for women was discussed.     

Street Youths′ Fear of Violent Crime

Utilizing a sample of 300 street youths the article examines the roles, perceptions of control, depression, prior victimization, criminal behavior, peer crime and victimization, homelessness, and violent subcultural values play in the perception of violent victimization risk and the fear of violent crime. Results suggest that previous victimization and peers’ victimization along with depression and an external locus of control increases perceptions of victimization risk for violent crime. Younger street youths also perceived greater victimization risk. Further, females and minority respondents have higher levels of fear of violent victimization. Levels of fear of violent crime are also predicted by previous violent victimization, depression, and an external locus of control. In contrast, social support and violent subcultural values were associated with lower levels of fear. Findings are discussed in terms of extending theory to help understand perceptions of victimization risk and fear of crime.     

Street Youth,Gender, Financial Strain,and Crime: Exploring Broidy and Agnew's Extension to General Strain Theory

General strain theory posits that adversive circumstances experienced by youths increase the likelihood of criminal behavior. Broidy and Agnew argue that while the underlying process identified in the general strain model will be applicable to both male and female crime different models of strain may be required to highlight gender differences in the underlying process. Utilizing a “high risk” sample of 400 homeless street youths the study examines how socioeconomic strain in the forms of homelessness, monetary dissatisfaction, and relative deprivation may be differentially linked to property and violent crime depending on gender. The conditioning effects of deviant attitudes, deviant peers, attributions, self-efficacy, and self-esteem are also examined. The results reveal few gender differences in the main effects of the different types of strain on crime. There are, however, gender differences in the way the conditioning variables impact the link between forms of strain and crime.     

Does the Brain Differentiate Between Related and Unrelated Cuts When Processing Audiovisual Messages? An ERP Study

The purpose of this study is to test the hypothesis that during audiovisual message processing (e.g., television or film), cuts in the video track cause an orienting response, which is reflected in the involuntary shift of attention. In classic research by Reeves et al. (1985) Reeves, B., Thorson, E., Rothschild, M. L., McDonald, D., Hirsch, J. and Goldstein, R. 1985. Attention to television: Intrastimulus effects of movement and scene change on alpha variation over time. International Journal of Neuroscience, 27: 241–255. doi:10.3109/00207458509149770[Crossref], [PubMed], [Web of Science ®] , [Google Scholar], changes in the alpha band were noticed in reaction to montage cuts. We propose an investigation of the brain's reaction to montage cuts by means of event-related potentials (ERPs), which are the brain's electrophysiological responses to a stimulus. Well-known indices of orienting response are two ERP components: P3 and slow cortical potential (SCP). Ten participants watched a film consisting of 105 related and 114 unrelated cuts while an electroencephalographic signal was recorded. The hypothesis that unrelated cuts in the video track when watching an audiovisual message cause more pronounced SCP was confirmed. There was no effect of unrelated cuts on P3. The results of this study provide a good starting point for further research on brain reactions to the structural features of an audiovisual message, such as close ups or camera moves.     

Challenges for the sequential two-system model of moral judgement

Considerable evidence supports the sequential two-system (“default interventionist”) model of moral judgement, as proposed by Greene and others. We tested whether judgement speed and/or personal/impersonal moral dilemmas can predict the kind of moral judgements (utilitarian or deontological) subjects make for each dilemma, and whether personal dilemmas create difficulty in moral judgements. Our results showed that neither personal/impersonal conditions nor spontaneous/thoughtful-reflection conditions were reliable predictors of utilitarian or deontological moral judgements. Yet, we found support for an alternative view, in which, when the two types of responses are in conflict; the resolution of this conflict depends on both the subject and the dilemma. While thinking about this conflict, subjects sometimes change their minds in both directions, as suggested by the data from a mouse-tracking task.     

Uncovering beliefs embedded in the culture and its implications for practice: the case of Maltese married couples

Given the low incidence of marriage breakdown in Malta, this study investigates the level of marital satisfaction among Maltese couples and how they manage conflict between them. One particular interest in conducting this study has been that of exploring how cultural beliefs shape marital relationships and to what extent Maltese clinicians can rely on the Anglo-American literature in their clinical work with married couples. Three hundred and fifty-four randomly selected couples answered a self-administered questionnaire simultaneously and separately. A number of findings, namely the influence of a child-oriented family in the level of marital satisfaction and the predominance of a constructive style of conflict resolution, differed from those we normally find in the Anglo-American literature. The study addresses the importance of taking into account the cultural context when working with couples. The implications for practice of the various beliefs embedded in the culture are highlighted.