Random Digit Dialing

(redirected from Random-Digit Dialing)

Random Digit Dialing

The practice in which a computer generates random telephone numbers to dial. This is done in some phone surveys to ensure a random sample. Random digit dialing can include unlisted phone numbers. It is cost effective in some marketing campaigns, provided the area being dialed has a relatively high phone ownership rate. See also: Do not call list.
References in periodicals archive ?
The Stroke Prevention in Young Adults Study was a population-based, case-control study of people in the Baltimore-Washington area aged 15-49 years who either had a first ischemic stroke between 1992 and 2008 or were age-matched controls without stroke who were contacted by random-digit dialing.
The 460-question survey is being administered to 500 respondents identified through random-digit dialing.
The Bureau also conducts contract survey research and offers a random-digit dialing program for survey organizations in need of random telephone samples.
English-speaking Seattle residents aged 18-39 were contacted by telephone through random-digit dialing.
Random-digit dialing identified two matched control subjects per patient.
using industry standard random-digit dialing techniques from a representative sampling provided by Survey Sampling Inc.
The NPF survey used random-digit dialing to query 27,000 Americans 18 years of age or older during November through December 2001.
Over 1000 households are polled based on random-digit dialing, with all demographic and regional groups in America fairly represented.
3 percent, and utilized a random-digit dialing methodology.