This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...

Survey methods are used to collect informative data in a wide range of scientific contexts. This Comment outlines how to ensure that a survey is fit for its intended purpose and to avoid the many ...

During the COVID-19 pandemic, social and behavioral data provided political actors and public health professionals with an empirical basis for guiding their actions in fighting the pandemic 1. In the ...