David M. Murray – författare
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2 produkter
2 produkter
Del 27 - Monographs in Epidemiology and Biostatistics
Design and Analysis of Group-Randomized Trials
Inbunden, Engelska, 1998
1 289 kr
Skickas inom 5-8 vardagar
This is the first comprehensive text on the design and analysis of group-randomized trials. It It collects information previously scattered among journals and texts in a variety of disciplines, and, in addition, presents much new material not available elsewhere. The book has been written to help those involved in these trials improve their ability to plan, fund, conduct, analyse, and interpret them, and to give students a detailed understanding of the field.Group-randomized trials are comparative studies in which the units of assignment are identifiable groups and the units of observation are members of those groups. The positive intraclass correlation expected among the members of each group poses unique and challenging issues for the design and analysis of these trials and separates them from the traditional clinical trial. After reviewing the underlying issues, Murray presents the research designs that are most widely used in group-randomized trials, together with their strengths, weaknesses, and appropriate applications. He describes the many approaches to analysis that are now available, presents mixed-model regression analyses appropriate to each design, and illustrates them using data from the Minnesota Heart Health Program. He also covers methods for estimating sample size, detectable difference, and power. This volume is not limited only to a conceptual treatment of the issues and solutions. It offers a review of the practical applications in a series of case studies, examples, and problems.
Häftad, Engelska, 2027
374 kr
Kommande
The Conscience of a City and a Nation is the first comprehensive biography of Paul Block Jr., son of a publishing giant who owned newspapers across the United States. Block was passionate about studying chemistry, which he studied at Columbia and Yale. However, following his father’s death, he stepped in to help run papers the Blocks owned in Pittsburgh and Toledo. Eventually, Block and his family relocated to Toledo, one of Ohio’s up-and-coming cities.After working to gain respect from his colleagues at The Blade, Block became well known for his commitment to unbiased journalism. This book traces his long career—dispatches sent from a World War II battlefield, his work on the Toledo Tomorrow project, and his advocacy for civil rights and social justice. During a turbulent time in American history, Block was unafraid to champion causes he believed in.While Block was successful in business, he struggled with his role as a father and husband. David M. Murray masterfully highlights these complexities of Block’s personal and professional life. Married several times, Block was the father of three sons, who were often left with nannies as he worked late at the paper and then alone in his home laboratory. At times, his relationships with the boys were strained. Making use of archival materials—including Block’s letters, records, reports, clippings, and photographs—Murray traces Block’s unlikely trajectory and his philosophy about the role journalism should have in influencing change at the local, national, and even global levels. Meticulously researched and engagingly written, The Conscience of a City and a Nation is an important biography about one of Ohio’s most influential figures in the twentieth century.