21,822 research outputs found
Informed Consent and Dual Purpose Research
The ethical treatment of human participants in psychological research is regulated by both federal guidelines and the ethical standards of the American Psychological Association (APA). Under certain circumstances, however, both APA standards and federal regulations allow for exceptions for informed consent. In spite of the possibility of exception, a number of factors have made it difficult to conduct and publish research that does not incorporate informed consent. The authors consider these factors and propose 2 approaches that may reduce reluctance to consider exceptions to informed consent under appropriate circumstances. First, journals should not rely on informed consent as the only method of screening research for the ethical treatment of human participants. Second, efforts must be made to work with institutional review boards and other units that review psychological research to ensure that their members are aware of the conditions under which informed consent is considered reasonable. Failure to consider ethical research without informed consent may have serious ethical consequences for research
Principal Turnover in Illinois Public Schools, 2001-2008
Analyzes trends in turnover among public school principals in 2001-08 compared with 1987-2001, school-based and personal reasons for the moves, characteristics of their new positions, and the role of school accountability pressures. Examines implications
An Examination of the Relationship Between Overall Efficiency and Farm Experience
This paper examines the relationship between overall efficiency and years of farm experience for a sample of Kansas farms. In addition to years of experience, overall efficiency is significantly related to farm size, percent of time devoted to farming, and percent acres owned.Farm Management,
How Do Analyst Recommendations Respond to Major News?
We examine how analysts respond to public information when setting stock recommendations. We model the determinants of analysts’ recommendation changes following large stock price movements. We find evidence of an asymmetry following large positive and negative returns. Following large stock price increases, analysts are equally likely to upgrade
or downgrade. Following large stock price declines, analysts are more likely to downgrade. This asymmetry exists after accounting for investment banking relationships
and herding behavior. This result suggests recommendation changes are “sticky” in one direction, with analysts reluctant to downgrade. Moreover, this result implies that analysts’ optimistic bias may vary through time
Vector and Axial Nucleon Form Factors:A Duality Constrained Parameterization
We present new parameterizations of vector and axial nucleon form factors. We
maintain an excellent descriptions of the form factors at low momentum
transfers, where the spatial structure of the nucleon is important, and use the
Nachtman scaling variable xi to relate elastic and inelastic form factors and
impose quark-hadron duality constraints at high momentum transfers where the
quark structure dominates. We use the new vector form factors to re-extract
updated values of the axial form factor from neutrino experiments on deuterium.
We obtain an updated world average value from neutrino-d and pion
electroproduction experiments of M_A = 1.014 +- 0.014 GeV/c2. Our
parameterizations are useful in modeling neutrino interactions at low energies
(e.g. for neutrino oscillations experiments). The predictions for high momentum
transfers can be tested in the next generation electron and neutrino scattering
experiments.Comment: 5 pages, 3 figures, to be published in EPJ
LAND MARKET LIBERALIZATION AND WEALTH DIFFERENTIATED LAND ACCESS: PANEL EVIDENCE FROM HONDURAS AND PERU
We evaluate the impact of agricultural land market liberalization policies in Latin America by empirically examining the degree to which the reforms have broken down the dependence of operational area on owned area. We use panel data sets from Honduras and Peru to estimate the relationship between operational and owned land holdings for pre and post reform periods.Land Economics/Use,
A SYSTEMS MODEL OF THE INDIRECT ENERGY EXPENDED IN FARM MACHINERY PRODUCTION AND USE
Resource /Energy Economics and Policy,
Monopolizing force?: police legitimacy and public attitudes towards the acceptability of violence
Why do people believe that violence is acceptable? In this paper we study people’s normative beliefs about the acceptability of violence to achieve social control (as a substitute for the police, for self-protection and the resolution of disputes) and social change (through violent protests and acts to achieve political goals). Addressing attitudes towards violence among young men from various ethnic minority communities in London, we find that procedural justice is strongly correlated with police legitimacy, and that positive judgments about police legitimacy are associated with more negative views about the use of violence. We conclude with the idea that police legitimacy has an additional, hitherto unrecognized, empirical property – by constituting the belief that the police monopolise rightful force in society, legitimacy has a ‘crowding out’ effect on positive views of private violence
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