Samples Of Telephone Greetings How Do We Do RDD Sampling In Telephone Interviews?

How do we do RDD sampling in telephone interviews? - samples of telephone greetings

RDD (Random Digit Dialing) sampling is usually selected by an automatic dialer, a computer program randomly selects and the phone number in the specified area destination code implemented, for example 214-XXX-XXXX. The material is a little expensive for the purchase and installation, while most companies to conduct the telephone poll, to vote to appoint an independent search. A few companies that are well known and respected in the field of market research, telephone surveys in particular are listed below.
http://www.infosurv.com/market_research_ ...
http://www.acnielson.com