The phrase describes a specific scenario in survey research where a population group is chosen without any predetermined bias or preference. In this context, the New York Times and CBS News conducted a survey. A subset of a larger group, selected randomly, was the recipient of the survey questions. This process ensures each member of the overall population has an equal opportunity to be included in the survey, aiming to eliminate selection bias and make the findings representative of the larger group. For example, a poll targeting registered voters might utilize this technique to contact individuals across different demographic groups, such as age, gender, and geographic location, in proportion to their presence in the voter population.
Employing this methodology is crucial for ensuring the credibility and generalizability of survey results. A well-executed survey using this method allows researchers to make inferences about the broader population with a quantifiable degree of confidence. The historical context involves a shift from less rigorous sampling techniques to more sophisticated statistical methods, enabling more accurate insights into public opinion and behavior. The strength of this type of survey lies in its ability to provide data that reflects the views of the entire population, allowing for meaningful analysis of societal trends and opinions.
