Response rate (also known as completion rate or return rate) in survey research refers to the number of people who answered the survey divided by the number of people in the sample. It is usually expressed in the form of a percentage.
Example: if 1,000 surveys were sent by mail, and 257 were successfully completed and returned, then the response rate would be 25.7%.
In direct marketing, the response rate refers to the number of people who responded to the offer.
In oncology, response rate (RR) is a figure representing the percentage of patients whose cancer shrinks (termed a partial response, PR) or disappears after treatment (termed a complete response, CR) . In simpler terms RR=PR+CR.
There may be a non-response bias if the response rate is low.
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Famous quotes containing the words response and/or rate:
“What I’m saying is that a lot of behavior that you are talking about is a direct response of people not having a future, or feeling that they don’t have a future.”
—William Julius Wilson (b. 1935)
“If you could choose your parents,... we would rather have a mother who felt a sense of guilt—at any rate who felt responsible, and felt that if things went wrong it was probably her fault—we’d rather have that than a mother who immediately turned to an outside thing to explain everything, and said it was due to the thunderstorm last night or some quite outside phenomenon and didn’t take responsibility for anything.”
—D.W. Winnicott (20th century)