Roper's Specialty is Polling, which is the practice of collecting and analyzing public opinion. It involves surveying people to determine their opinions on a variety of topics, such as politics, economics, and social issues. Polling is used to gauge public opinion on current events, to predict election outcomes, and to inform policy decisions. Pollsters use a variety of methods to collect data, including telephone surveys, online surveys, and face-to-face interviews. The results of these surveys are then analyzed to draw conclusions about public opinion.