Numbers, Facts and Trends Shaping Your World
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The public’s views of Donald Trump have changed little over the course of his presidency – and this is the case for opinions about whether Trump has done enough to distance himself from white nationalist groups. In a new survey, a 56% majority says Trump has done too little to distance himself from white nationalist […]
Andrew Mercer is a principal methodologist at Pew Research Center. He is an expert on probability-based online panels, nonprobability survey methods, survey nonresponse and statistical analysis. His research focuses on methods of identifying and correcting bias in survey samples. He leads the Center’s research on nonprobability samples and co-authored several reports and publications on the subject. He also served […]
John Gramlich is an associate director at Pew Research Center, where heoversees the organization’s data journalism blog. His research and writing focuses on criminal justice, legal affairs, immigration and other issues. Before joining the Center, he was a researcher at The Pew Charitable Trusts, where he focused on the U.S. correctional system. Earlier in his […]
The American Trends Panel (ATP), created by the Pew Research Center, is a nationally representative panel of randomly selected U.S. adults recruited from landline and cell phone random digit dial surveys. Panelists participate via monthly self-administered Web surveys. Panelists who do not have internet access are provided with a tablet and wireless internet connection. The […]
A new telephone survey experiment finds that an opinion poll drawn from a commercial voter file produces results similar to those from a sample based on random-digit dialing.