A mass survey that seeks to understand public opinion toward President Obama's health care reform legislation would likely rely on:

Question

Quizplus · Accepted Answer

A random sample of between a few hundred and several thousand individuals is the most appropriate choice as it allows for a representative sample to be drawn from the population and provides statistical power to ensure accurate results. Contacting the entire U.S. population (A) would be impractical and costly, and an oversample of only those who have voted in the previous election (B) would exclude many individuals who are eligible to vote but did not participate in the last election. Similarly, selecting only registered voters (C) would exclude those who are not registered to vote. An oversample of highly educated individuals (D) would introduce bias into the sample and may not accurately represent the opinions of the entire population.

A Mass Survey That Seeks to Understand Public Opinion Toward