Telephone surveys are still considered the gold standard for rigorous public opinion polling and market research. The reason is that virtually every household in the U.S. can be reached by telephone, and therefore we have careful methods of determining the probability that any individual person is included in a sample to be surveyed. Knowing this probability is at the core of statistical inference, which makes mathematical purists very happy.
Here are the steps involved in conducting a rigorous “gold standard” telephone survey of the U.S. population: (more…)
