random digit

random digit

[′ran·dəm ′dij·ət]
(statistics)
Digit taken from a table of random numbers according to some specified probability rule.
References in periodicals archive ?
All respondents were contacted via Random Digit Dialing methodology.
Cell phones numbers are selected using random digit dial methods.
DESIGN: The Menopause Epidemiology Study is a cross-sectional, population-based study of women 40 to 65 years old in the United States chosen from a source population selected by random digit dialing and probability sampling.
During the last 2 weeks of November 2008, Precision Opinion -- a national public opinion firm in Las Vegas, using a random digit dial methodology, completed 1,385 telephone interviews on a national basis with adults 18-years of age and older.
We acknowledge that a "bank" of these readily accessible controls could permit more rapid recruitment of participants in numerous age strata and obviate the need for extensive random digit dialing to recruit an adequate age-matched control population in many investigations.
Earlier in the year, Manhattan Research conducted a similar random digit dial telephone survey of 1,208 U.
All data were collected by the Gallup Organization, using telephone interviews based on identical random digit dialing sampling methods.
It cautions, however, that the ratings are not readily comparable with those that preceded them because the latest poll has adopted a new polling method known as random digit dialing, as opposed to the older one based on phone directories.
GfK Roper Public Affairs & Media conducted these studies using Random Digit Dialing (RDD) methodology.
METHODS: Participants were recruited into the Menopause Epidemiology Study from the KnowledgePanel(SM), which is selected by random digit dialing and probability sampling from the US population.
In December 2007, GfK Roper Public Affairs & Media conducted a study using Random Digit Dialing (RDD) methodology.