Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.

Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

A new study of random-sample auditing of health plans says the method doesn't detect hundreds of millions of wasted dollars. Researchers for Healthcare Data Management, Inc., a provider of health plan ...

Scientists at Scripps Research report that they have unveiled a new tissue-clearing method for rendering large biological samples transparent. The method makes it much easier for scientists to ...

Historically, public opinion surveys have relied on the ability to adjust their datasets using a core set of demographics – sex, age, race and ethnicity, educational attainment, and geographic region ...