In calculating the response rate for studies with screening questions and, therefore, a certain percentage of the sample who are "eligible," it is impossible to estimate the percentage of those members of the sample who are not called (i.e. not at homes, busy signals, etc.)who are "eligible." Therefore, the response rate formula omits the concept of eligibility, thus giving us response rates much lower than they should be.

Question

Quizplus · Accepted Answer

The response rate formula can include adjustments for eligibility by estimating the proportion of eligible respondents among those not reached, thus providing a more accurate response rate.

In Calculating the Response Rate for Studies with Screening Questions