Random Digit Dialing

Random Digit Dialing (RDD) is a method used by surveyers and researchers to reach a broad, unbiased sample of phone users. It involves generating phone numbers randomly within a defined area or prefix, ensuring that both listed and unlisted numbers can be contacted. This approach minimizes selection bias and helps gather representative opinions or data from the population. RDD is commonly used in opinion polls, social research, and market studies, allowing researchers to access a diverse set of respondents efficiently and fairly.