2.10 Optional: Random allocation
This question is optional; for example, if you need more practice, or you are studying for the exam.
(Answers are available in Sect.A.2)
For a small pilot study, Sam allocated 12 students (6 males and 6 females) to one of two groups.
In the Report associated with the study, Sam stated that the 12 students were
...randomly allocated to one of two groups (Group A or Group B).
Different interventions were applied to each group.
A reviewer, however, noted that all the subjects in Group A were male, and all the subjects in Group B were female.
- Would this be a problem? Why?
- Do you agree with Sam, that the subjects really were allocated to the groups at random? Explain your answer.