Probability-based panel: This refers to a national survey panel recruited using random sampling from a database that includes most people in the population. Today, most such panels in the United ...

Poor quality samples significantly impact the reliability and value of the insights. Yet too few questions are being asked by clients and research suppliers around this critical issue. Here are ...

Using this standard, informed consent remains focused on what information a reasonable person would want to have to make an informed choice about participation; this includes: the nature of the ...

Pew Research Center generally tends to rely on self-identification ... Attitudes do not always differ significantly between the different subsets of the sample, however. For example, huge majorities ...

However, more recent near-side samples collected by China’s Chang’e-5 lunar mission in 2020 were found to be 2 billion years old. The research also showed that the samples didn’t carry the ...

You usually have a sample of blood taken from a vein in your arm. Where possible, blood samples for research are taken at the same time as routine blood tests. A tissue sample is a sample of cells ...

China's space agency has released the approved list for the eighth batch of lunar sample research applications, allowing applicants to borrow samples returned by both the Chang'e-5 and Chang'e-6 ...