Random Digit Dialing
978-613-4-69141-3
6134691410
84
2010-12-24
34.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Random digit dialing (RDD) is a method for selecting people for involvement in telephone statistical surveys by generating telephone numbers at random. Random digit dialing has the advantage that it includes unlisted numbers that would be missed if the numbers were selected from a phone book. In populations where there is a high telephone-ownership rate, it can be a cost efficient way to get complete coverage of a geographic area. RDD is widely used for statistical surveys, including election opinion polling and selection of experimental control groups. An important consideration in random digit dialing surveys is bias introduced by non-responders. Non-response bias can be a problem if responders differ from non-responders for the measured variables. For example, nonresponders may not have been contacted because they work multiple minimum-wage jobs.
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Sciences sociales Générales
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