The rate of occurrence of persons eligible to participate in the study expressed as a percentage is the ________.
A) initial sample size
B) completion rate
C) incidence rate
D) final sample size

Question

Quizplus · Accepted Answer

The rate of occurrence of persons eligible to participate in the study is known as the incidence rate. A is incorrect because initial sample size refers to the number of participants at the start of the study. B is incorrect because completion rate refers to the percentage of participants who have completed the study. D is incorrect because final sample size refers to the number of participants at the end of the study after accounting for dropout or missing data.

The Rate of Occurrence of Persons Eligible to Participate in the Study