Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 4

List some reasons why randomization might be preferred to a convenience sample.

Step 1 of 3

There are numerous reasons for using randomization process that are well-preferred to a convenience sample. One main big reason of using randomization process is that it strikes out the balance level that deals with confounding phenomenon. For example, smoking act as a confounding factor that in turn, randomizes the sufficient large number of participants that produces a similar ratio of smokers distribution in terms of duration, age factor and intensity of smoking between the control and intervention groups.