标题: 万能的8da~~~~~我来请教一个统计中的名词: blocking [打印本页] 作者: 八达通 时间: 2008-12-15 15:14 标题: 万能的8da~~~~~我来请教一个统计中的名词: blocking viki百科看的
Blocking: A schedule for conducting treatment combinations in an experimental study such that any effects on the experimental results due to a known change in raw materials, operators, machines, etc., become concentrated in the levels of the blocking variable. Note: the reason for blocking is to isolate a systematic effect and prevent it from obscuring the main effects. Blocking is achieved by restricting randomization.