Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

Measuring the identity of Taiwanese Americans, and Asian origin groups in the United States more generally, is a challenging endeavor, whether in survey research or when trying to generate estimates ...

Targeting matters most. Surveying the wrong audience can lead to misleading data and poor decisions, even if the questions themselves are solid. Weighting shapes reality. Overrepresenting certain ...

Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

Professor of Statistics at UNSW, President of the Statistical Society of Australia and a Deputy Director of the Australian Centre of Excellence in Mathematical and Statistical Frontiers, UNSW Sydney ...