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611.
Permutation Tests for Linear Models   总被引:4,自引:1,他引:3  
Several approximate permutation tests have been proposed for tests of partial regression coefficients in a linear model based on sample partial correlations. This paper begins with an explanation and notation for an exact test. It then compares the distributions of the test statistics under the various permutation methods proposed, and shows that the partial correlations under permutation are asymptotically jointly normal with means 0 and variances 1. The method of Freedman & Lane (1983) is found to have asymptotic correlation 1 with the exact test, and the other methods are found to have smaller correlations with this test. Under local alternatives the critical values of all the approximate permutation tests converge to the same constant, so they all have the same asymptotic power. Simulations demonstrate these theoretical results.  相似文献   
612.
This study examined newspaper coverage of the battle between two pharmaceutical companies in the arthritis painkiller market and the impact that the companies’ public relations activities had on the way the story was presented. A framing analysis was used to determine the relationship between the companies’ messages and press content. Frames consistent with the companies’ objectives occurred, but most stories were rated as neutral, with an almost equal number of favorable and unfavorable stories. This suggested that the companies may have influenced the press on what to cover but not necessarily what to say.  相似文献   
613.
To “care for one's own” is a cultural expectation within a larger ethic of care in the African-American community. Applied to caregiving of aging elders, this ethic of care emphasizes the importance of providing in-home family care rather than opting for out-of-home placement. This study explores why a subset of African-American caregivers prefer or are open to out-of-home placement over in-home family care if they are no longer able to care for themselves. In-depth interviews with 24 family caregivers are analyzed. Three themes emerged including the desire to “spare our children” the burden associated with caregiving, viewing the next generation of potential caregivers as unequipped for the task, and having no one left to provide care for them.  相似文献   
614.
Entrepreneurship is a broad concept encompassing a wide range of activities, from the Schumpertian ideal associated with innovation to simply creating a job for oneself. Because we ask about national differences in entrepreneurship, we consider national differences for entrepreneurship, the institutions, and if these relate to the emergence of different types of enterprise. We propose that national patent grants represent innovation and that national self-employment rates represent job replacement. Interestingly, we found that institutional factors that determine self-employment and innovation may act in opposite directions: what encourages self-employment might discourage innovation and vice-versa.  相似文献   
615.
616.
The Institute of Medicine (IOM) Report—Cancer Care for the Whole Patient: Meeting Psychosocial Health Needs—provided recommendations for meeting the palliative care needs of our growing population of older Americans. The IOM report highlights the demand for social work leadership across all aspects of the health care delivery system. Social workers are core interdisciplinary members of the health care team and it is important for them to be well prepared for collaborative leadership roles across health care settings. The ExCEL in Social Work: Excellence in Cancer Education &; Leadership education project was created as a direct response to the 2008 Institute of Medicine. (2008). Cancer care for the whole patient: Meeting psychosocial health needs. Washington, DC: National Academies Press. [Google Scholar] IOM Report. This article highlights a sampling of palliative care projects initiated by outstanding oncology social work participants in the ExCEL program. These projects demonstrate the leadership of social workers in palliative care oncology.  相似文献   
617.
Recent global attention to research integrity has led to international meetings and the development of international policies and guidelines. The United States's infrastructure for fostering research integrity (policy, instruction, oversight) has usefully supported these international initiatives. The United States cannot and should not, however, expect other national and global systems to match exactly its approach to research integrity.  相似文献   
618.
Each year thousands of older adults are admitted to nursing homes. Following admission, nursing home staff and family members must interact and communicate with each other. This study examined relationship and communication patterns between nursing home staff members and family members of nursing home residents, as part of a larger multi-method comparative case study. Here, we report on 6-month case studies of two nursing homes where in-depth interviews, shadowing experiences, and direct observations were completed. Staff members from both nursing homes described staff–family interactions as difficult, problematic and time consuming, yet identified strategies that when implemented consistently, influenced the staff–family interaction positively. Findings suggest explanatory processes in staff–family interactions, while pointing toward promising interventions.  相似文献   
619.
620.
Child safety is now a national policy priority in Australia. Extensive enquiries and reviews have escalated legislative and policy responses focused on developing, maintaining and monitoring “child safe” organisations. The recommendations of the Royal Commission into Institutional Responses to Child Sexual Abuse point to the importance of cultural conditions within organisations in supporting child safety and the need for responsive change in some organisations. Drawing on a recent policy analysis, undertaken as part of a larger Australian Research Council Discovery Project, this article examines how children and safety are constructed, within and across relevant state and federal government policies in Australia, and the implications of this. Distinctions are drawn between conceptualisations of children within the broader education policy context and two specific policy contexts in which children are considered particularly vulnerable to abuse – out‐of‐home care and disability. The findings indicate that policy discourses of “child safe” potentially foster different emphases and approaches in organisations. These have implications for the way children are positioned in relation to their safety, how their rights are recognised and implemented, and what is required to foster cultural conditions within organisations to best support children’s safety and wellbeing.  相似文献   
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