Randomization in an experiment means that the experimental units or subjects are assigned to the treatment and control groups or blocks by some random process.?

Randomization in an experiment ensures that each experimental unit has an equal chance of being assigned to any group, which helps eliminate bias and control for confounding variables. This process enhances the validity of the results by ensuring that differences observed between groups can be attributed to the treatment rather than other factors. By randomly assigning subjects, researchers can better generalize their findings to a larger population. Ultimately, randomization is a key principle in experimental design that promotes fairness and accuracy in the assessment of treatment effects.