Screening Services


What is Nationalplus?

Nationalplus is national RDD sample that has been pre-screened through the IDplus process. Nationalplus provides the quick turnaround of screened sample that some researchers demand. Nationalplus samples have up to 70% of the non-productive numbers removed.

How do I get Nationalplus?

Nationalplus sample can be obtained by contacting one of our account representatives via e-mail or telephone.

What do I get?

Nationalplus sample files are a representative national RDD sample with the non-productive numbers removed.

What more can I do?

The screening services IDplus and CSS can be utilized for purging non-productive numbers contained in custom RDD samples.