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101.
Ten years ago the UK held one of the largest, most complex and politically charged exercises in the turn towards public engagement in the governance of the biosciences. Called ‘GM Nation’ this experiment arose as an attempt to mediate public concerns in the run-up to a government decision on whether to allow some varieties of GM crops to be commercially cultivated in the UK. Formed to mediate a controversy, ‘GM Nation’ itself became a focus of controversy, with claims that many of its public participants were already engaged in the GM issue and were thus not representative of a general public. In this way, the category of the public became a contested category, with at least two different versions of the public featuring in the GM controversy. Particularly important was the contrast between engaged or issue publics that emerged entangled in and increasingly familiar with the objects and issues of the controversy, and a general public, identified through its distance and disengagement from the GM issue. These different forms of public were articulated through different modes of engagement ranging from engaged publics found in hybrid forums such as local village meetings, to versions of the general public brought into being in some of the closed parts of ‘GM Nation’. Throughout all this, a wider public institutional architecture, improvised to govern the controversy, became the site of complex boundary work that attempted to separate science from politics, a feature that conditioned how these different versions of public would be articulated and received.  相似文献   
102.
Based on over 25 years of research on hidden profiles and information sharing in groups, and particularly our own work in this area, we outline a general model of how groups can achieve better decisions in a hidden profile situation than their individual members would have been capable of (i.e., synergy). At its core the model defines intensity and bias as the two key parameters that have to be optimised with regard to both the discussion of information and the processing of information in order to ensure synergy in group decision making. We review the empirical literature on information sharing and group decision making in the hidden profile paradigm (with a particular focus on our own studies) to illustrate how group decision quality can be enhanced by increasing intensity and decreasing bias in the discussion and processing of information. Finally we also outline why we think that the lessons learned from research using the hidden profile paradigm can be generalised to group decision-making research in general, and how these lessons can stimulate studies in other fields of group decision-making and group performance research.  相似文献   
103.
104.
This study investigated psychological reactions of adolescents to a severe stress situation—the evacuation of the Sinai settlements. The research focused on emotional reactions of anxiety and anger to this stress situation. Two central problems were investigated: (a) The intensity of the emotional responses of anxiety and anger of the adolescents to the stress situation, before and after the evacuation, and (b) the impact of three intervening variables on these emotional reactions—cognitive perception of the political situation, family functioning, and personality characteristics. Data for this study were collected in a regional high school in Israel from 418 pupils in 9th through 12th grades. Seventy-eight of the pupils lived in the Yamit area. Measurements were obtained at three points in time: 6 weeks and 1 week before the evacuation and 2 months after it. The results supported the predicted trend that adolescents in the Yamit group before the evacuation would score higher on state anxiety and state anger than would those in the comparison group. Two months after the evacuation there was a significant drop in those scores. The trait measures remained stable in both groups and no significant differences were found between the two groups on these scores. Concerning the impact of the three intervening variables on the intensity of the state emotional responses, the results did not support any of the hypotheses.  相似文献   
105.
The aim of this article is to propose the formative measurement approach that can be used in various constructs of applied psychology. To illustrate this approach, the authors will (a) discuss the distinction between commonly used principal-factor (reflective) measures in comparison to the composite (formative) latent variable model, which is often applied in other disciplines such as marketing or engineering, and (b) point out the advantages and limitations of formative specifications using the example of the work–family balance (WFB) construct. Data collected from 2 large cross-sectional field studies confirm the reliability and validity of formative WFB measures as well as its predictive value regarding criteria of WFB (i.e., job satisfaction, family satisfaction, and life satisfaction). Last, the specific informational value of each formative indicator will be demonstrated and discussed in terms of practical implications for the assessment in different psychological fields.  相似文献   
106.
In this study, we investigated gender differences in problem solving as a function of problem context and expectations for success. Subjects were 90 women and 56 men from introductory psychology classes who were administered a set of mathematical problems varying in gender context under male-expectancy, female-expectancy, and neutral-expectancy conditions. No significant gender differences or interaction of gender with problem context were found. However, significant effects of problem context and expectancy were found. Both male and female subjects made higher scores on female-context problems and lower scores in the female-expectancy condition. When mathematics aptitude was used as a covariate, an interaction of gender with expectancy was found. Men in the female-expectancy condition made significantly lower scores than either men or women in the male-expectancy condition.  相似文献   
107.
This article describes a cross-sectional study of the links between job-related stressors and depressive and psychophysiologic symptoms and morale in 67 New York City teachers. The teachers' mean score on the Center for Epidemiologic Studies Depression Scale (CES-D; M = 13.03) was higher than might be expected from average community residents. The teachers also tended to express dissatisfaction with their jobs. The CES-D and the Psychophysiologic Symptom Scale were correlated as highly as their reliabilities would permit, a finding consistent with the view that the CES-D and the Psycho physiologic Symptom Scale measure the same construct, nonspecific psychological distress. The correlational findings suggest that distress is distinct from job-related morale, which was indexed by measures of motivation to continue teaching and job satisfaction. The results of regression analyses, which controlled for sociodemographic factors, indicated that the level of job strain (frequency of ongoing stressors) is more closely related to psychological distress and low morale than episodic stressors, including crimes in which the teacher was victim. The regression analyses also indicated that colleague support was related to lower symptom levels and higher morale.  相似文献   
108.
This investigation studied variability in visual thresholds for six subjects for 50 consecutive days. The results show the following:

1. Session-to-session variability agrees closely with the variability estimates made by Hecht and Zegers.

2. No periodic or cyclic trends appeared for the group or for any individual subject.

3. For all six subjects for the first 15 days of testing, a learning phenomenon was observed for the mean and standard-deviation data. There was a slow rise over the last 10 days of testing for the mean, but not for the standard-deviation data. (A discussion of the possible causes of the rise of the mean over the last 10 days suggested the influence of extraneous factors, such as boredom and fatigue.)

4. No effect of the menstrual cycle upon the threshold values was found.

4. No effect of the menstrual cycle upon the threshold values was found.  相似文献   
109.
Seventy-two five- to seven-year-old boys were exposed to televised adult models and were then administered tests of resistance to deviation (moral behavior), moral choice, and moral judgment level. Boys exposed to a model who said he would resist deviating from a prohibition and who supported his statement with a morally realistic justification were subsequently more likely to use that model's statements to guide their own moral behavior and moral choice than were boys exposed to a model advocating resistance to deviation with a morally autonomous justification. Realistic models expressing a deviating moral choice led to more deviating moral choices in observers than did autonomous deviating models. The moral judgment levels of the boys were not significantly affected by the models. The boys' moral behavior was predictive of their moral choice while moral judgment level was not significantly related to the other two indices of morality.  相似文献   
110.
Mechanical Turk (MTurk), an online labor system run by Amazon.com, provides quick, easy, and inexpensive access to online research participants. As use of MTurk has grown, so have questions from behavioral researchers about its participants, reliability, and low compensation. In this article, we review recent research about MTurk and compare MTurk participants with community and student samples on a set of personality dimensions and classic decision‐making biases. Across two studies, we find many similarities between MTurk participants and traditional samples, but we also find important differences. For instance, MTurk participants are less likely to pay attention to experimental materials, reducing statistical power. They are more likely to use the Internet to find answers, even with no incentive for correct responses. MTurk participants have attitudes about money that are different from a community sample's attitudes but similar to students' attitudes. Finally, MTurk participants are less extraverted and have lower self‐esteem than other participants, presenting challenges for some research domains. Despite these differences, MTurk participants produce reliable results consistent with standard decision‐making biases: they are present biased, risk‐averse for gains, risk‐seeking for losses, show delay/expedite asymmetries, and show the certainty effect—with almost no significant differences in effect sizes from other samples. We conclude that MTurk offers a highly valuable opportunity for data collection and recommend that researchers using MTurk (1) include screening questions that gauge attention and language comprehension; (2) avoid questions with factual answers; and (3) consider how individual differences in financial and social domains may influence results. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
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