title: Sampling in physical therapy research.
abstract: 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.
mesh_terms: D026741:Physical Therapy Modalities; D012107:Research Design; D012494:Sampling Studies