如何确定和安排试验设计三要素中的研究因素（英文）

研究因素是试验设计三要素中的一个重要要素。研究因素可分为试验因素和非试验因素。试验因素是研究者十分关心的同类试验条件的总称,而非试验因素是研究者不想关心但又可能会影响结果的因素。本文叙述了研究因素的定义、如何确定试验因素和非试验因素、合理安排试验因素与区组因素、注意因素之间的交互作用、试验因素的标准化和在确定试验因素方面常犯的错误。

How to appropriately choose and arrange research factors

Research factors are a very important element in any research design. Research factors include experimental and non-experimental factors. The former is the general term used to describe the similar experimental conditions that researchers' are interested in, while the latter are other factors that researchers have little interest in but may influence the result. This article mainly focuses on the following issues: the definition of research factors, the selection and arrangement of experimental factors and non-experimental factors, the interaction between research factors, the standardization of research factors and the common mistakes frequently made by researchers.