Who’s left out in a Web-only survey and how it affects results
We surveyed non-Web panel members by mail and assessed how much, if at all, their non-participation would affect the outcome in a poll conducted exclusively online.
Andrew Perrin
Publications
Methodology
This analysis of internet usage is based on a compilation of 98 surveys and over 229,000 interviews among the general public conducted by the Pew Research Center from March 2000 to May 2015. These surveys are combined, allowing for comparisons of trends among different demographic groups across years. Yearly totals are calculated by combining all […]
Americans’ Internet Access:
2000-2015
The share of all U.S. adults who use the internet increased from 52% in 2000 to 84% today.
