Which of the following is the purpose of having random assignment in an experiment?
A) It prevents subjects from knowing of which experimental group they are a member.
B) It provides ethical reasons for being in an experiment.
C) It makes sure that the results are caused by the treatment.
D) It determines how the subjects will behave in the experiment.

Question

Quizplus · Accepted Answer

Random assignment helps ensure that any differences observed between experimental groups can be attributed to the treatment rather than pre-existing differences between the groups.

Which of the Following Is the Purpose of Having Random