商品簡介
This text provides the most comprehensive treatment of the design and analytic issues involved in group-randomized trials. GRTs are comparative studies conducted to evaluate the effect of a health promotion intervention in which the units of assignment are identifiable groups (e.g., schools, worksites) and the units of observation are members of those groups (e.g., students, workers). The book reviews the underlying issues, the most widely used research designs, and analytic strategies. There is an emphasis on mixed-model regression, with two chapters illustrating the analytic methods in SAS PROC MIXED and GLIMMIX. There is also a detailed chapter on power analysis and sample size calculation.
作者簡介
Dr. Murray is the Chair of the Division of Epidemiology in the School of Public Health at The Ohio State University. Since 1978, he has evaluated intervention programs designed to improve the public health. Since 1989, he has focused on the design and analysis of group-randomized trials. He collaborates with colleagues around the country on the design, implementation and evaluation of group-randomized trials. He also conducts research to develop and test methods for the analysis of data from group-randomized trials. Dr. Murray teaches courses on the design and analysis of group-randomized trials and was the first Chair of the Community Level Health Promotion study section at NIH, which reviews a number of proposals for new group-randomized trials.
