The U.S. Census is one of the most useful tools for research and marketing because it tells you how many people fit specific demographic profiles and where they live. It started out as a simple count of how many people live in each state in order to allocate congressional seats. But it has since become a rich…
These days most researchers agree that if you want to do a random sample phone survey of the U.S. population, you ought to include cell phones. More than one-quarter of the population do not have landline telephones at home. Those who do have landline telephones are less likely than ever to answer them, and less…
A good chart is the best way to understand the law of diminishing returns when it comes to sample size. So for our June 2011 newsletter we built an interactive graph for choosing sample size. It’s cool, educational, and useful. Moreover, it will show you just how mind boggling the numbers behind sampling can be. …
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…
A research article the Winter 2009 issue of Public Opinion Quarterly provided some useful comparisons of data quality between phone surveys and various types of online surveys. The findings are based on an experiment that fielded identical questionnaires via three survey modes, and, not surprisingly, there are strengths and weaknesses to each type of survey.…
This article has been updated. Please see A Better Way to Get Census Data.
Mistakes to Avoid when Conducting a Public Relations Survey Surveys and polls can be powerful tools to understand what people are thinking and doing, and they can provide good data for public relations efforts and community outreach. Unfortunately they can also be gimmicks, which erodes trust in polling and in the organizations sponsoring them.