The Gallup World Poll asks hundreds of core items of all respondents as well as hundreds of region-specific questions around the globe to gauge the unique behavioral climate in the world's different countries and local areas. Gallup asks both the core and region-specific questions over time. This creates a constant flow and update of information and gives World Poll users the ability to compare data and spot key trends. This extensive, continuous survey provides a new access point to the voices, hearts, and minds of the majority of the Earth's population.
Jeff Johnson on 12 Jul 08There are several ways that the FiveThityEight methodology differs from other poll compilations. Firstly, we assign each poll a weighting based on that pollster's historical track record, the poll's sample size, and the recentness of the poll. More reliable polls are weighted more heavily in our averages. Secondly, we include a regression estimate based on the demograhics in each state among our 'polls', which helps to account for outlier polls and to stabilize the results. Thirdly, we simulate the election 10,000 times for each site update in order to provide a probabilistic assessment of electoral outcomes.
