What surveys really say

Nature: International Weekly Journal of Science
,
vi, 614-615 S.
,
2021,

Kreuter, Frauke
ISSN: 0028-0836 (print) , 1476-4687 (online)

Increasing the sample size of a survey is often thought to increase the accuracy of the results. However, an analysis of big surveys on the uptake of COVID-19 vaccines shows that larger sample sizes do not protect against bias.