Florczak Kristine L
Saint Xavier University, Woodridge, Illinois 60517, USA.
Nurs Sci Q. 2011 Jul;24(3):202-5. doi: 10.1177/0894318411409429.
The purpose of this column is to bring to light a lack of rigor in the design of randomized controlled trials. In this effort, basic tenets of quantitative design are considered including delineation of populations along with probability and non-probability sampling techniques in addition to defining random selection and random assignment. The idea that randomized controlled trials, considered the pièce de résistance of the evidence-based practice movement, lack rigor because of their use of randomly assigned groups without random selection of subjects is presented.
本专栏的目的是揭示随机对照试验设计中缺乏严谨性的问题。在这项工作中，我们考虑了定量设计的基本原则，包括群体的界定以及概率抽样和非概率抽样技术，此外还对随机选择和随机分配进行了定义。文中提出，随机对照试验被视为循证实践运动的核心成果，但由于其在随机分配组时未对受试者进行随机选择，因而缺乏严谨性。
