Random digit dialing
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.
- Comment
- enRandom 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.
- Has abstract
- enRandom 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. When the desired coverage area matches up closely enough with country codes and area codes, random digits can be chosen within the desired area codes. In cases where the desired region doesn't match area codes (for instance, electoral districts), surveys must rely on telephone databases, and must rely on self-reported address information for unlisted numbers. Increasing use of mobile phones (although there are currently techniques which allow infusion of wireless phones into the RDD sampling frame), number portability, and VoIP have begun to decrease the ability for RDD to target specific areas within a country and achieve complete coverage.
- Hypernym
- Method
- Is primary topic of
- Random digit dialing
- Label
- enRandom digit dialing
- Link from a Wikipage to an external page
- aje.oxfordjournals.org/cgi/content/full/153/11/1119%7Carchive-url=https:/archive.today/20130415134014/http:/aje.oxfordjournals.org/cgi/content/full/153/11/1119%7Curl-status=dead%7Carchive-date=2013-04-15%7Ctitle=Comparison
- www.amstat.org/sections/srms/Proceedings/papers/1980_155.pdf%7Ctitle=An
- Link from a Wikipage to another Wikipage
- Area code
- Autodialer
- Category:Survey methodology
- Category:Telephone numbers
- Country code
- Election
- Electoral district
- Experimental control
- Local number portability
- Opinion polling
- Phone book
- Random number generation
- Statistical survey
- Telephone
- Telephone number
- VoIP
- SameAs
- 22SB6
- m.026b4wj
- Q2130735
- Random digit dialing
- Random Digit Dialing
- ランダム・デジット・ダイヤリング
- Subject
- Category:Survey methodology
- Category:Telephone numbers
- WasDerivedFrom
- Random digit dialing?oldid=1044095595&ns=0
- WikiPageLength
- 2822
- Wikipage page ID
- 7729277
- Wikipage revision ID
- 1044095595
- WikiPageUsesTemplate
- Template:Cite journal
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