Little Confidence (little + confidence)

Distribution by Scientific Domains


Selected Abstracts


How much confidence should we place in efficiency estimates?

HEALTH ECONOMICS, Issue 11 2003
Andrew StreetArticle first published online: 3 DEC 200
Abstract Ordinary least squares (OLS) and stochastic frontier (SF) analyses are commonly used to estimate industry-level and firm-specific efficiency. Using cross-sectional data for English public hospitals, a total cost function based on a specification developed by the English Department of Health is estimated. Confidence intervals are calculated around the OLS residuals and around the inefficiency component of the SF residuals. Sensitivity analysis is conducted to assess whether conclusions about relative performance are robust to choices of error distribution, functional form and model specification. It is concluded that estimates of relative hospital efficiency are sensitive to estimation decisions and that little confidence can be placed in the point estimates for individual hospitals. The use of these techniques to set annual performance targets should be avoided. Copyright © 2002 John Wiley & Sons, Ltd. [source]


PUBLIC UNDERSTANDING OF FOOD RISK ISSUES AND FOOD RISK MESSAGES ON THE ISLAND OF IRELAND: THE VIEWS OF FOOD SAFETY EXPERTS

JOURNAL OF FOOD SAFETY, Issue 4 2005
MARTINE DE BOER
ABSTRACT Food safety experts have a key role in constructing food risk messages and thus their perceptions will influence how food risk issues are communicated to the public. This research examined the perceptions of food safety experts regarding public understanding of food risk issues and food risk messages on the island of Ireland. It also looked into expert views of the barriers to effective food risk communication and how to improve food risk messages. One hundred and forty-three experts, working in areas related to food safety, completed an online questionnaire. Questionnaire and statement design was guided by the results of four in-depth interviews with food safety experts. The findings indicate that most experts surveyed have little confidence in the public's understanding of food risk issues, their assessment of food risks, their ability to deal with scientific information and their food safety practices. Experts are of the view that the public under-assesses the risk associated with some microbiological hazards and over-assesses the risk associated with other hazards such as genetically modified organisms (GMOs) and bovine spongiform encephalopathy. The opinion of experts with regard to GMOs is not supported by previous consumer research. Experts noted that the level of education and age were important determinants for the level of understanding of food risk issues and messages. Experts were of the view that early intervention via school curricula was the best method to improve public understanding of food risk messages in the long term. Furthermore, experts are of the view that the media have the ability to improve awareness and knowledge about food risk issues but believe that the media tend to communicate information that is misleading. The majority of experts also believe that they should communicate uncertainty but are not confident that the public is able to cope with this uncertainty. Many of the experts also indicated a desire for training on how to interact with the media. The results may be used by those experts who are involved in the construction of food risk messages to improve the design and communication of food risk messages. [source]


Institutions and governance: public staff management in Tanzania

PUBLIC ADMINISTRATION & DEVELOPMENT, Issue 5 2006
Benson Bana
Abstract The importance of institutions is one of the distinctive features of the new governance model. This article is an empirical study of how the institutional framework affects the way public servants are managed in Tanzania. In the ,Ujamaa' period, staffing institutions were placed under the control of the ruling party so that they would serve national development objectives, but the effect was to contaminate the efficiency and integrity of government. The legal framework conferred excessive powers on the President, and centralised staffing authority in agencies which were largely rubber-stamping bodies, and it allowed duplication of functions between central and line agencies. Recent reforms have not altered this situation. In a climate of corruption and favouritism, there was little confidence in the integrity of civil service staffing. There was a need to strengthen its independence, to devolve and to align the institution governing it with current political and development objectives while controlling corruption at lower levels. Our findings may have an application to the institutions of government as a whole. Copyright © 2006 John Wiley & Sons, Ltd. [source]


Are There Enough Doctors in My Rural Community?

THE JOURNAL OF RURAL HEALTH, Issue 2 2009
Perceptions of the Local Physician Supply
ABSTRACT:,Purpose: To assess whether people in the rural Southeast perceive that there is an adequate number of physicians in their communities, assess how these perceptions relate to county physician-to-population (PtP) ratios, and identify other factors associated with the perception that there are enough local physicians. Methods: Adults (n = 4,879) from 150 rural counties in eight southeastern states responded through a telephone survey. Agreement or disagreement with the statement "I feel there are enough doctors in my community" constituted the principal outcome. Weighted chi-square analysis and a generalized estimating equation (GEE) assessed the strength of association between perceptions of an adequate physician workforce and county PtP ratios, individual characteristics, attitudes about and experiences with medical care, and other county characteristics. Findings: Forty-nine percent of respondents agreed there were enough doctors in their communities, 46% did not agree, and 5% were undecided. Respondents of counties with higher PtP ratios were only somewhat more likely to agree that there were enough local doctors (Pearson's correlation coefficient = 0.09, P < .001). Multivariate analyses revealed that perceiving that there were enough local physicians was more common among men, those 65 and older, whites, and those with lower regard for physician care. Perceptions that the local physician supply was inadequate were more common for those who had longer travel distances, problems with affordability, and little confidence in their physicians. Perceptions of physician shortages were more common in counties with higher poverty rates. Conclusions: County PtP ratios only partially account for rural perceptions that there are or are not enough local physicians. Perceptions of an adequate local physician workforce are also related to how much people value physicians' care and whether they face other barriers to care. [source]