Learning to read a survey means understanding margins of error, sampling, weighting, and media framing, with an essential ...

The population of Russia consists of more than 150 local ethnicities. The ethnic diversity and geographic origins, which extend from eastern Europe to Asia, make the population uniquely positioned to ...

Population genetic studies of North Asian ethnic groups have focused on genetic variation of sex chromosomes and mitochondria. Studies of the extensive variation available from autosomal variation ...

Effective and noninvasive whale and biodiversity monitoring is now possible with the help of citizen scientists, opening up new opportunities for marine conservation. Water samples collected during ...

Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

The 1% National Population Sample Survey was a major survey of national conditions and strength. According to the Regulations on National Population Census and the Notice of the General Office of the ...