Daniel W W, Coogler C E
Phys Ther. 1975 Dec;55(12):1326-31. doi: 10.1093/ptj/55.12.1326.
Although the importance of appropriate statistical analyses of the results of physical therapy research is well documented, the theory and methodology of sampling, the procedure by which the data of research are usually obtained, has received much less attention in the physical therapy literature. To help fill this gap, some of the basic concepts and techniques of sampling are discussed.
尽管物理治疗研究结果进行适当统计分析的重要性已有充分记载，但抽样理论和方法（即通常获取研究数据的程序）在物理治疗文献中受到的关注要少得多。为了填补这一空白，本文将讨论抽样的一些基本概念和技术。
