Sample Solutions has developed a
that is fully representative
Introduction to RDD
Random Digit Dialing, commonly known as RDD, is a cost effective method for generating a representative sample of households with fixed telephones.
Often when telephonic consumer fieldwork is conducted, fieldwork agencies make use of RDD sample. The main advantage of RDD is that it includes unlisted numbers as well.
Sample Solutions has developed a highly accurate RDD procedure that maintains the representative proportion of the corresponding populations.