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301.
Inspired by the seminal typology of power first suggested by French and Raven, this study identified five types of power (Expert, Information Reward, Information Coercive, Advertising Coercive, and Influence Powers) that health public relations practitioners believed they have in media relations. This study also examined the effect of four variables, such as personal closeness with reporters, openness towards the media, perceived media job performance, and perceived expertise in the health field, on these five types of perceived power. The results suggested that public relations practitioners who highly evaluate themselves as an expert in health and as a competent media communicator, and who are personally close with reporters have greater Expert Power in media relations. Also, when practitioners are personally close to reporters, they are more likely to use Information Reward Power. 相似文献
302.
The vigilance reinforcement hypothesis (VRH) asserts that errors in signal detection tasks are partially explained by operant reinforcement and extinction processes. VRH predictions were tested with a computerized baggage screening task. Our experiment evaluated the effects of signal schedule (extinction vs. variable interval 6 min) and visual field complexity (dial vs. baggage x-ray) on search behavior rates. There was a main effect for signal schedule [F (1, 20) = 14.0, p = .001, prep = 0.99], but no effects for field complexity or interaction. The VRH suggests that performance errors in visual screening work may be reduced through operant conditioning of search behaviors by intensive management of artificially planted signals. 相似文献
303.
The findings of this study are mixed. In general, after one year of judicial-citizen review, there is no clear indication that this alternative to internal case review has led to more positive outcomes for children in foster care. This finding should be heartening to public child welfare agency personnel whose motivation for accountability has been called into question by proponents of external foster care review. At least when compared with a new citizen review system, the already existing internal review system measured up quite well. Although the study did not indicate a clear pattern of more positive outcomes for the study group, there is evidence of some favorable characteristics of CRPs that may show promise for the future. With additional training in developing behaviorally measurable and time-limited parental objectives, citizen panels may be able to maintain some of their initial strength in this area. Increased involvement of juvenile court judges in cases where little or no progress is made could motivate some parents to meet specified objectives and speed up the process of terminating parental rights when no progress has been demonstrated within specified time periods. The data also indicate a need for some adjustment to the process used to involve parents in case reviews. Another potentially positive outcome was highlighted during interviews with the juvenile court judges and the DFCS staff in the three study counties. Many of these respondents believed that the process had the potential for moving children out of foster care more quickly than does the internal review process. In addition to this primary goal, however, respondents were excited about the potential for heightened community awareness and education as citizens come to understand more about the plight of foster children and family conditions that can lead to placement. Interviews with panel members themselves indicated a definite belief that the community needed to accept more responsibility for children in foster care. One panel member's comment reflects the general sentiment expressed by other respondents: "These are kids we used to call 'those kids,' but now they are 'our kids'." It is hoped that the judicial-citizen review process will help to create a community environment in which needed resources can be developed both to prevent placement and to provide more support for families and children when placement occurs. This is the sentiment of the three juvenile court judges and almost all DFCS staff members who were interviewed, when they asserted that they felt the CRP process should be continued and expanded statewide.(ABSTRACT TRUNCATED AT 400 WORDS) 相似文献
304.
Beth S. Milton Lindsey Dugdill Lorna A. Porcellato R. Jane Springett 《Children & Society》2008,22(4):291-302
This article aims to explore the ways in which preadolescents associate smoking with transitions to adulthood, in the context of sociological theories of childhood, using data from the Liverpool Longitudinal Study of Smoking. The research found that at age 9 many of the cohort argued that smoking was more acceptable for adults because they had bigger bodies than children. Some children also suggested that smoking was appropriate for adults because adults were competent to make important decisions and to balance risks. By age 11, when several of the cohort had actually tried smoking, children's views about the risks smoking posed to their bodies had altered, and many children were aware of smoking‐related disease among adults. The cohort also suggested that some children might take up smoking to demonstrate that they are ‘grown up’ too. In the UK, legal restrictions on the age of tobacco purchase are reinforced by social norms that construct smoking as an activity that is only suitable for adults. The goal of legal restrictions that ban the sale of cigarettes to children is to protect their health. The unintended outcome, however, is that for many young people smoking is a way of demonstrating maturity and adult status. 相似文献
305.
J. K. Lindsey & P. J. Lindsey 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2001,164(2):327-338
A major survey of the determinants of access to primary education in Madagascar was carried out in 1994. The probability of enrolment, probability of admission, delay before beginning school, probability of repeating a year and probability of dropping out were studied. The results of the survey are briefly described. In the analysis, one major problem was non-random missing values in the covariates. Some simple methods were developed for detecting whether a response variable depends on the missingness of a given covariate and whether eliminating the missing values would distort the resulting model. A way of incorporating covariates with randomly missing values was used such that the individuals having the missing values did not need to be eliminated. These methods are described and examples are given on how they were applied for one of the key covariates that had a large number of non-random missing values and for one for which the values appear to be randomly missing. 相似文献
306.
307.
Lisa A. Cameron 《Economic inquiry》1999,37(1):47-59
The ultimatum game has generated considerable interest because experimental evidence strongly rejects the standard game-theoretic predictions. A limitation to this general result is the possibility that experimental results are an artifact of small stakes. Implementing the ultimatum game in Indonesia makes it possible to raise the stakes to three times the monthly expenditure of the average participant. Even with these sizable incentives, results do not uniformly approach the sub-game perfect, selfish outcomes. More specifically, responders become more willing to accept a given percentage offer at higher stakes, but proposer behavior is largely invariant to stake changes. ( JEL C91, C78) 相似文献
308.
We completely characterize the simple majority weighted voting game achievable hierarchies, and, in doing so, show that a
problem about representative government, noted by J. Banzhaf [Rutgers Law Review
58, 317–343 (1965)] cannot be resolved using the simple majority quota. We also demonstrate that all hierarchies achievable
by any quota can be achieved if the simple majority quota is simply incremented by one. 相似文献
309.
Cameron G 《Child welfare》2002,81(1):33-57
Findings from the Parent Mutual Aid Organizations (PMAOs) in the Child Welfare Demonstration Project are presented with particular emphasis on parents' motivation to join PMAOs and the benefits from their involvement. Members' perceptions from qualitative investigations are compared with a controlled outcome study. PMAO members show less loneliness, more enthusiasm about their lives, and improved self-esteem and confidence. PMAOs result in substantially less reliance on child protection professionals, fewer child placements, and cost savings for the host agency. 相似文献
310.
The Caribbean Basin Economic Recovery Act eliminates U.S. tariffs on many exports of countries in the Caribbean Sea and Central America. This paper estimates the short-run effects of these tariff eliminations on the export earnings and economic welfare of the beneficiary countries. It is found that the tariff eliminations increase annual export earnings of beneficiaries by at most $81 million and provide annual welfare gains to these countries of $15 million to $24 million. The benefits are concentrated in agricultural products (particularly sugar, beef, and tobacco) and in products assembled from U.S. components for export to the United States (particularly electronic equipment). The countries that benefit most are the Dominican Republic, Panama, and Guatemala. 相似文献