Zogby International

November 21, 2009

Released: May 18, 2007

Random Digit Dialing vs. Listed Sample: A Zogby International Research Study into Telephone Survey Methodologies

Zogby International has concluded a research project comparing two different and widely accepted methods of telephone opinion research - Random Digit Dialing (RDD) and dialing telephone numbers that are listed in directories.

As the world of telephone polling continues to undergo dramatic changes, this study is an in-depth and useful examination of the differences of outcome using these two methods.

To view the report, please click here.

(5/18/2007)

Tags: Technology | US | Politics

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