【摘要】 探讨在卫生项目评价中应用群随机试验设计的适宜性和优缺点,然后根据数据的群内相关系数推导出设计效应,最后给出了应用群随机试验设计时的注意事项。更多还原

【Abstract】 The adequateness and advantage or disadvantage in group randomized trail design applied in health program evaluation had been identified.Then based on the group regression coefficient deduce the design effect being introduced.Finally the notice issues when apply the group randomized trail design had been discussed.更多还原