Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

EnergySmart Institute releases RESNET Sampling Standard Course for ENERGY STAR Multifamily and HERS Index Generation ...

Physicists at Boston University have achieved what amounts to a long-sought benchmark in quantum measurement: detecting the ...

Some 233 million — or 81% of Americans aged 12 and over — consumed online audio in the last month. Furthermore, some 219 million Americans over the age of 11 — or 76% — listened to online audio in the ...

The latest Infinite Dial study found that U.S. podcast and online audio consumption have reached all-time highs.

A group of Black professors is launching the first national Black Professors Study to assemble an integrated dataset on Black faculty and inform equity and accountability. Researchers say the Black ...

We highlight why transparency matters in opinion polling — plus more from two recent webinars with the Roper Center.

Most renters — including those earning six figures — doubt they could afford a home in the foreseeable future.

But Democrats have made little headway in persuading Americans that they have better ideas or policies to offer.

A new study shows that stars with low magnetic activity are likely to support exoplanetary systems, making the hunt for these ...

U.S. childhood and teen obesity rates have reached record-highs while adult obesity rates may be slowing, according to two ...

Fifty years ago, a controversial writer named Shere Hite taught us how to talk about sex and pleasure, selling books by the ...