Survey methodology encompasses the systematic approach to designing, administering and analysing surveys to ensure reliable and valid data. Central to this discipline is the optimisation of response ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Knowing who voted is critical to developing an accurate understanding of an ...

The LSMS high-frequency phone surveys are leveraging existing face-to-face surveys as sampling frames and sources of longitudinal data. These techniques also feed into analyzing the phone survey data ...

Data modeling refers to the architecture that allows data analysis to use data in decision-making processes. A combined approach is needed to maximize data insights. While the terms data analysis and ...

Pew Research Center conducted this analysis to explore partisan identification among U.S. registered voters across major demographic groups and how voters’ partisan affiliation has shifted over time.

New research comparing data from the two largest-ever elephant surveys reveals the overall population in the Kavango Zambezi Transfrontier Conservation Area is stable, but also uncovers some ...