欲得到医学科研准确满意的结论,事前进行良好的实验设计是十分重要的。实验设计包括制定计划和方案,确定方法与步骤。事先要对科研进行合理的安排,从而以最少的人力、物力,并能以最快速度得到科学的、精确的(不是模梭两可的)结论。过去大量医学科研中,不少是经过良好实验设计的材料,较快较好地得出正确结论,推动了防治工作的开展。但也有一些科学实验存在明显的缺陷,如凭经验来判断防 To be accurate and satisfactory medical research conclusions, in advance of good experimental design is very important. Experimental design involves developing plans and programs to identify methods and steps. Scientific research should be arranged in advance so that scientific and accurate conclusions (which are not mixed) can be obtained at the fastest speed with a minimum of manpower and material resources. In the past a large number of medical research, many are well-designed experimental materials, faster and better to draw the correct conclusion, and promote the prevention and control work. But there are also some obvious flaws in scientific experiments, such as judgments based on experience