A researcher consented 400 subjects, but 12 dropped out of the study before it was completed. The rest finished the study. What was the sample retention rate?

Question

Quizplus · Accepted Answer

The sample retention rate is calculated by dividing the number of subjects who completed the study by the original number of subjects, then multiplying by 100 to get a percentage. In this case, 388 out of 400 subjects completed the study, so the retention rate is (388/400) * 100 = 97%.

A Researcher Consented 400 Subjects, but 12 Dropped Out of the Study