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We experimentally compare fast and slow decisions in a series of experiments on financial risk taking in three countries involving over 1700 subjects. To manipulate fast and slow decisions, subjects were randomly allocated to responding within 7 seconds (time pressure) or waiting for at least 7 or 20 seconds (time delay) before responding. To control for different effects of time pressure and time delay on measurement noise, we estimate separate parameters for noise and risk preferences within a random utility framework. We find that time pressure increases risk aversion for gains and risk taking for losses compared to time delay, implying that time pressure increases the reflection effect of Prospect Theory. The results for gains are weaker and less robust than the results for losses. We find no significant difference between time pressure and time delay for loss aversion (tested in only one of the experiments). Time delay also leads to less measurement noise than time pressure and unconstrained decisions, and appears to be an effective way of decreasing noise in experiments.  相似文献   
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This study addressed the role of actual and perceived similarity in peer rejection of socially anxious adolescents. Videotapes of 20 high and 20 low socially anxious adolescents (13–17 years old) giving a speech were rated by groups of unfamiliar peers with regard to perceived similarity and desire for future interaction (lower scores indicating rejection). Actual similarity between speakers and observers regarding social anxiety and gender was also taken into account. Findings showed that high socially anxious students were more rejected and that perceived but not actual similarity between peer observers and speakers (partly) mediated rejection.  相似文献   
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Infants’ emerging ability to move independently by crawling is associated with changes in multiple domains, including an increase in expressions of anger in situations that block infants’ goals, but it is unknown whether increased anger is specifically because of experience with being able to move autonomously or simply related to age. To examine the influence of locomotion on developmental change in anger, infants’ (N = 20) anger expressions during an arm restraint procedure were observed longitudinally at a precrawling baseline assessment and 2 and 6 weeks after the onset of crawling. Infant age at each crawling stage was unrelated to the frequency of anger expressed in response to arm restraint. At 6 weeks postcrawling onset, infants whose mothers rated them as temperamentally higher in distress to limitations, compared with those rated lower, showed a greater increase in the frequency of anger expressed during the arm restraint relative to earlier assessments and took longer to reduce the frequency of anger expressed when no longer restrained. Findings suggest that experience with autonomous crawling has an effect on anger expression, independent of age, and that a temperamental tendency to become distressed by limitations may exacerbate the effect of crawling on anger expression.  相似文献   
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The objective of this work was to summarise and evaluate the evidence showing that physical activity is a protector factor as regards falls in older people. Relevant studies were identified through a systematic search in the MEDLINE and Cochrane Library, under the keywords of accidental fall/numerical data and risk factors, and with the bibliographies of retrieved papers. The combined odds ratio (OR) [95% confidence interval] for physical activity was 0.75 [0.64, 0.88] with moderate heterogeneity (I 2?=?33%). For fall injury, it was 0.59 [0.47, 0.74] and, for falls in general, it rose to 0.94 [0.76, 1.17] with nil heterogeneity. The combined OR for sedentary factors was 1.14 [1.10, 1.82] with moderate heterogeneity (I 2?=?36%). Regular physical activity in daily life yields significant reduction in falls in older people, especially falls with injuries.  相似文献   
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Strong cultural values and ideals attached to women in families deem the role of stepmother as inferior to that of biological mother. Although biological motherhood is celebrated, stepmotherhood is stigmatized, and women who wish to become mothers but become stepmothers prior to having biological children may grieve the loss of images surrounding normative ideals of creating a family. Using a feminist family science approach, the purpose of this grounded theory study was to explore the experiences of women without children in their transition to stepmotherhood. Interviews with 23 stepmothers (aged 26–47) revealed that women engaged in an internal process of creating and then adjusting personal images of family life to accommodate their new family circumstances. The process of (re)constructing family images had implications for later adjustment to stepmotherhood. Notions of the motherhood hierarchy emerged to depict the unique experiences of women who became stepmothers prior to having biological children.  相似文献   
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It has long been recognized that children with a parent or close relative in prison are more likely to experience educational difficulties, emotional distress, family breakdown and a substantial reduction in family income (Boswell 2002; Smith et al. 2007; Morgan et al. 2013b; Morgan and Gill 2013). Consequently, children with a parent in prison are more likely to require support from statutory services, especially education and social care. However, statutory support for this group of children is sparse, and children of prisoners tend not to be identified as a priority group. The demand on local authorities to spend their limited budgets wisely means tough decisions have to be made. These decisions are not taken in a vacuum: they are taken in a context of local need, consumer representation, central and local politics; underpinned by the values and attitudes of individual members as well as by the ethos or culture of the local authority itself. In this article we apply Axford's typology (2009) of the different cultures which underpin local authority service provision to data from a research study carried out in 2011 in one local authority which explored support provision in schools for children of prisoners. We examine the contradictions and gaps within the local authority's attempts to synergize the different modules of service delivery into a coherent pattern of provision, and we explore how changes in strategic culture might lead to improvements being made in terms of service delivery to this group of ‘vulnerable’ children.  相似文献   
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Current policy places great emphasis on the development of partnerships, particularly between NHS and local authority services, with the aims of increasing service coordination and delivery and improving health. To this end, primary care groups (PCGs), at the forefront of NHS organizational developments, are required to include a social services representative on their governing boards; similarly, primary care trusts (PCTs) have a social services representative on their executive committees. Drawing on a representative longitudinal national survey of English PCGs, the paper evaluates the contribution of these new governance arrangements to the development of inter-agency partnerships. Despite poor histories of collaboration and some major organizational barriers, there are some signs of progress, with social services representatives playing an active part in PCG affairs and having clear lines of communication about PCG matters with their employing authorities. Equally significantly, PCGs have also quickly established a wide range of contacts directly with other local authority services and departments. However, these early gains risk being limited by traditional professional inequalities between social work and medicine and, in particular, by the prospect of further organizational upheaval as PCGs merge with each other and/or acquire trust status.  相似文献   
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