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Statistical hypothesis testing. --- Statistical hypothesis testing --- Tests d'hipòtesi (Estadística) --- Data processing.

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Advocates within the growing field of children's rights have designed dynamic campaigns to protect and promote children's rights. This expanding body of international law and jurisprudence, however, lacks a core text that provides an up-to-date look at current children's rights issues, the evolution of children's rights law, and the efficacy of efforts to protect children. Campaigning for Children focuses on contemporary children's rights, identifying the range of abuses that affect children today, including early marriage, female genital mutilation, child labor, child sex tourism, corporal punishment, the impact of armed conflict, and access to education. Jo Becker traces the last 25 years of the children's rights movement, including the evolution of international laws and standards to protect children from abuse and exploitation. From a practitioner's perspective, Becker provides readers with careful case studies of the organizations and campaigns that are making a difference in the lives of children, and the relevant strategies that have been successful—or not. By presenting a variety of approaches to deal with each issue, this book carefully teases out broader lessons for effective social change in the field of children's rights.

Statistical hypothesis testing. --- Hypothesis testing (Statistics) --- Significance testing (Statistics) --- Statistical significance testing --- Testing statistical hypotheses --- Distribution (Probability theory) --- Hypothesis --- Mathematical statistics

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Power analysis is an essential tool for determining whether a statistically significant result can be expected in a scientific experiment prior to the experiment being performed. Many funding agencies and institutional review boards now require power analyses to be carried out before they will approve experiments, particularly where they involve the use of human subjects. This comprehensive, yet accessible, book provides practising researchers with step-by-step instructions for conducting power/sample size analyses, assuming only basic prior knowledge of summary statistics and the normal distribution. It contains a unified approach to statistical power analysis, with numerous easy-to-use tables to guide the reader without the need for further calculations or statistical expertise. This will be an indispensable text for researchers and graduates in the medical and biological sciences needing to apply power analysis in the design of their experiments.

Medicine --- Statistical power analysis. --- Power analysis (Statistics) --- Statistical hypothesis testing --- Health Workforce --- Research --- Statistical methods.

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This revised book provides a thorough explanation of the foundation of robust methods, incorporating the latest updates on R and S-Plus, robust ANOVA (Analysis of Variance) and regression. It guides advanced students and other professionals through the basic strategies used for developing practical solutions to problems, and provides a brief background on the foundations of modern methods, placing the new methods in historical context. Author Rand Wilcox includes chapter exercises and many real-world examples that illustrate how various methods perform in different situations.Introd

Estimation theory. --- Robust statistics. --- Statistical hypothesis testing. --- Hypothesis testing (Statistics) --- Significance testing (Statistics) --- Statistical significance testing --- Testing statistical hypotheses --- Distribution (Probability theory) --- Hypothesis --- Mathematical statistics --- Statistics, Robust --- Estimating techniques --- Least squares --- Stochastic processes

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From eminent biologists like Alfred Russel Wallace and Charles Darwin to famous authors such as Rudyard Kipling in his Just So Stories, many people have asked, "Why do zebras have stripes?" There are many explanations, but until now hardly any have been seriously addressed or even tested. In Zebra Stripes, Tim Caro takes readers through a decade of painstaking fieldwork examining the significance of black-and-white striping and, after systematically dismissing every hypothesis for these markings with new data, he arrives at a surprising conclusion: zebra markings are nature's defense against biting fly annoyance. Popular explanations for stripes range from camouflage to confusion of predators, social facilitation, and even temperature regulation. It is a serious challenge to test these proposals on large animals living in the wild, but using a combination of careful observations, simple field experiments, comparative information, and logic, Caro is able to weigh up the pros and cons of each idea. Eventually-driven by experiments showing that biting flies avoid landing on striped surfaces, observations that striping is most intense where biting flies are abundant, and knowledge of zebras' susceptibility to biting flies and vulnerability to the diseases that flies carry-Caro concludes that black-and-white stripes are an adaptation to thwart biting fly attack. Not just a tale of one scientist's quest to solve a classic mystery of biology, Zebra Stripes is also a testament to the tremendous value of longitudinal research in behavioral ecology, demonstrating how observation, experiment, and comparative research can together reshape our understanding of the natural world.

Zebras --- Stripes. --- Protective coloration (Biology) --- Color. --- adaptive significance. --- black and white coloration. --- equids. --- evolution. --- hypothesis testing. --- zebras.