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41.
Demography - During the last few decades the study of racial differences in occupational and economic attainment has progressed rapidly, both in terms of theory and research. The ecological study... 相似文献
42.
Barnes GM Welte JW Tidwell MC Hoffman JH 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2011,27(4):575-586
Two representative U.S. telephone surveys of gambling were conducted—an adult survey of adults aged 18 years and older (n = 2,631)
and a youth survey of young people aged 14–21 years old (n = 2,274). Because the questions and methods were the same or similar
in both surveys, the data from these two surveys were combined into a single dataset to examine the prevalence and sociodemographic
correlates of gambling and problem gambling across the lifespan. The present work focused specifically on gambling on the
lottery which is the most prevalent form of gambling in the U.S. The frequency of gambling on the lottery increased sharply
from mid adolescence to age 18 which is the legal age to purchase lottery tickets in most states; lottery play continued to
increase into the thirties when it leveled off and remained high through the sixties and then decreased among those 70 years
and older. Considering multiple sociodemographic factors together in a negative binomial regression, the average number of
days of lottery gambling was significantly predicted by male gender, age, neighborhood disadvantage and whether or not lottery
was legal in the state where the respondent lived. These findings can be used to inform policies regarding lotteries in the
U.S. 相似文献
43.
Shawn T. O’Neil Amitabh Chaudhary Danny Z. Chen Haitao Wang 《Journal of Combinatorial Optimization》2013,26(4):621-635
We present theoretical results for large-file distribution on general networks of known topology (known link bandwidths and router locations). We show that the problem of distributing a file in minimum time is NP-hard in this model, and we give an O(logn) approximation algorithm, where n is the number of workstations that require the file. We also characterize our method as optimal amongst the class of “no-link-sharing” algorithms. 相似文献
44.
Robert E. Frederick Ph.D. W. Michael Hoffman Ph.D. 《International Journal of Value-Based Management》1989,2(1):19-29
An analysis of the place of Business Ethics in the curriculum. 相似文献
45.
David S. Derezotes Deb Ashton Tracie L. Hoffman 《Child and Adolescent Social Work Journal》2004,21(3):237-264
The purpose of the Voices Project was to give children and adolescents a greater voice in the local and global dialogues about the precursors and solutions to all forms of school violence. This exploratory project incorporates input from youngsters, educators, community partners, and university researchers into the development of a model for non-violent schools and communities. In this article, the Voices Project is described and implications for practice forwarded. 相似文献
46.
Elana Newman Traci Willard Robert Sinclair Danny Kaloupek 《Accountability in research》2013,20(4):309-329
Researchers and institutional review boards are routinely called upon to evaluate the cost‐benefit status of proposed research protocols that involve human participants. Often these assessments are based on subjective judgments in the absence of empirical data. This reliance on subjective judgments is of particular concern for studies involving clinical samples where unfounded assumptions may adversely affect research progress or clinical outcomes. The Reactions to Research Participation Questionnaire (RRPQ) was designed to address this shortcoming and to help promote ethical decision making about research practice. The present study describes development of the RRPQ and presents a series of exploratory and confirmatory analyses investigating its structure. Based on these findings, a revised version of the instrument and suggestions for future research are presented. This approach provides a foundation for scientifically informed protection of human subjects. 相似文献
47.
Danny W. Turner 《The American statistician》2013,67(2)
A simple parametrized example is provided to illustrate the well-known fact that correlation near one in magnitude does not imply a relationship that is near perfect linearity. 相似文献
48.
Kevin Ward Jenny Pickerill Danny MacKinnon David Featherstone 《Social movement studies》2013,12(3):331-340
Activists in seven US cities were interviewed about why they thought people in their communities mobilized against alcohol-related problems. The data were analyzed in light of the focus on resource mobilization theory in the social movement literature. In contrast with claims that resources are the primary catalyst for change, informants emphasized the role of grievances, and to a lesser extent, bridging factors that caused residents to be more aware of or frustrated by problems, and thus ready for change. Resources seemed to provide necessary but insufficient conditions for explaining movement participation, suggesting that, to be effective, resources must be channeled to address and be linked to the grievous social conditions of inner city communities. 相似文献
49.
50.
Adam E. Barry Danny Valdez Patricia Goodson Leigh Szucs Jovanni V. Reyes 《Journal of American college health : J of ACH》2019,67(3):181-188
Understanding the unique health needs of college students and establishing best practices to address them depend, heavily, on the inherent quality and contribution of the research identifying these needs. College health-focused publications currently exemplify less than ideal statistical reporting practices. Specifically, college health practitioners and researchers continue to rely heavily upon null hypothesis significance testing (NHST) as the sole standard for effectiveness, validity, and/or replicability of scientific studies, even though NHST itself was not designed for such purposes. Herein we address the following questions: (a) What is NHST? (b) What are the inherent limitations of NHST? (c) What are recommended alternatives to NHST? and (d) How can editorial policies promote adopting NHST alternatives? Using college health data from the CORE 2011 Alcohol and Drug survey, we provide a heuristic example demonstrating how effect sizes do not suffer from the same limitations as NHST. 相似文献