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Complete random grouping method refers to randomly assigning experimental animals with similar homogeneity to the experimental group and the control group, so as to average the differences between the groups and improve the reliability of the experimental results.
In the specific operation, random allocation can be carried out by drawing lots, random number table, random arrangement table and other methods.
In short, under the condition of good homogeneity of experimental animals, simple random grouping (complete random grouping) method can better balance various potential interference factors and improve the reliability and repeatability of experimental results.