The procedure designed to ensure that the experimental and control groups do not differ in any way that might affect the experiment's results is called

Question

Quizplus · Accepted Answer

Random assignment is the procedure designed to ensure that the experimental and control groups are as similar as possible before the experiment begins. This is achieved by randomly assigning participants to either the experimental or control group, which reduces the likelihood of any pre-existing differences between the groups that might affect the results of the study. Variable controlling, representative sampling, and stratification are all important considerations in research design, but they are not specifically designed to address the issue of group differences in experimental and control groups.

The Procedure Designed to Ensure That the Experimental and Control