Datafolha is a prominent polling organization in Brazil that conducts research on electoral preferences. Established in 1983 as part of the Folha Group, the institute gained recognition after its first electoral survey in 1984, which focused on the indirect election of Tancredo Neves. Today, Datafolha interviews a diverse demographic of at least 2,000 individuals across Brazil's various municipalities, ensuring its sample represents the larger population through rigorous statistical methods and in-person interviews at high-traffic locations.

In conducting its surveys, Datafolha employs a multi-stage selection process to choose interviewees. Researchers operate in over 113 cities of varying sizes, utilizing a workforce of approximately 160 field researchers to collect data. A significant aspect of Datafolha’s operational integrity is that it does not conduct commissioned surveys for political parties or candidates, thereby ensuring unbiased results. Instead, the organization contracts its research efforts through media outlets, which are then legally bound to publish the findings, contributing to transparent electoral discourse.

The methodology of Datafolha not only serves to inform the electorate about shifting political landscapes but also plays a crucial role in shaping public debate during election cycles. As the credibility of polling organizations directly influences public opinion and voter turnout, Datafolha’s rigorous approach is pivotal in upholding democratic processes in Brazil, especially as upcoming elections approach. The organization's work represents a valuable resource for understanding public sentiment in a politically dynamic environment.