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三、实验设计的条件要求(一)实验组与对照组实验组是按课题要求施予不同处理因素或不同水平的组别,对照组是不施加处理因素但试验条件与试验组齐同的试验组。Fi-sher 说:“一个试验的对照,必须包括在试验本身内”。在生物试验研究中,必须具有对照的观念,故在实验设计时,不仅对实
Third, the experimental design conditions (A) experimental group and control group Experimental group is subject to the requirements of different treatment factors or different levels of the group, the control group is not applied processing factors but the test conditions and experimental group of the same test group. Fi-sher said: “A test control, must be included in the test itself.” In the biological experiment research, must have the conception of control, therefore in the experimental design, not only to the real