If one uses a subject variable in a study,

Question

Quizplus · Accepted Answer

Using a subject variable in a study does not necessarily affect the design of the study (A) or the equality of group sizes (B). However, causality cannot be attributed to the subject variable alone (C), as it is simply a characteristic or attribute of the participants in the study. This means that other factors may be responsible for any observed effects. The logic of experimentation may also be weakened (D) if causality is not established.

If One Uses a Subject Variable in a Study