Q&A: Using Google search data to study public interest in the Flint water crisis
Read an interview with Director of Journalism Research Amy Mitchell, who helped author the study.
Are Telephone Polls Understating Support for Trump?
Five months after Donald Trump’s victory in the 2016 election, public opinion polls find him with the lowest approval ratings of any president in modern history at this stage of a presidency.
Are Telephone Polls Understating Support for Trump?
An experiment comparing responses to 27 questions fielded on both a telephone and a web survey found no significant mode differences in overall opinion about Trump or many of his signature policy positions.
A basic question when reading a poll: Does it include or exclude nonvoters?
Opinion polls in the U.S. can address the same topic yet reach very different results. There are several reasons this can happen, but we tackle one of the most basic: Did the poll include or exclude the 45% who didn’t vote in November?
A closer look at police officers who have fired their weapon on duty
About a quarter of all officers say they have ever fired their service weapon while on the job. Are some more likely than others to have fired their weapon in the line of duty?
Video: Why 2016 election polls missed their mark
The results of the 2016 presidential election came as a surprise to nearly everyone who had been following the national and state election polling
Why 2016 election polls missed their mark
There is a great deal of speculation but no clear answers as to the cause of the disconnect, but there is one point of agreement: Across the board, polls underestimated Trump's level of support.
Oversampling is used to study small groups, not bias poll results
As oversampling and its possible effect on presidential polls are spotlighted ahead of Election Day, learn more about this practice and how pollsters adjust for it.
Cellphone Activity Flags
As telephone interviewing costs continue to rise and cellphones represent an increasing share of survey samples, survey researchers are exploring approaches to make these designs more cost-effective.
Putting post-debate ‘flash polls’ into perspective
In the aftermath of presidential debates, there is intense interest in gauging "who won." How can we know the answer to that question?
