Randomization as a method of experimental control has been extensively used in human clinical trials and other biological experiments. It prevents the selection bias and insures against the accidental bias. It produces the comparable groups and eliminates the source of bias in treatment assignments.

When randomization is used in an experiment?

Randomization in an experiment is where you choose your experimental participants randomly. For example, you might use simple random sampling, where participants names are drawn randomly from a pool where everyone has an even probability of being chosen.

What are the main purposes of randomization?

The main purpose for using randomization in an experiment is to avoid biased responses or subjects. This will make the experiment effective and effecient. Good.