When a researcher asks the question, "Was the subject dropout rate during the course of the study equal over the various conditions or more pronounced in certain treatment groups?", she is concerned with which one of the following potential confounds
A) regression
B) random error
C) mortality
D) events outside the laboratory history)

Question

Quizplus · Accepted Answer

The researcher is concerned with the dropout rate, which is a potential confound related to mortality (subjects dropping out of the study).

When a Researcher Asks the Question, "Was the Subject Dropout