Datafolha isGrupo Folha's polling institute, founded in 1983[1] as the research department of EmpresaFolha da Manhã S. A., and later on became a separate company[1] able to serve external clients, from 1990. In 1995, it became a separate business unit within Grupo Folha, a group of companies to which newspaperFolha de S.Paulo belongs.
Datafolha conducts statistical surveys, election polling, opinion and market surveys, both on behalf of other Grupo Folha units and for the market at large. The company does not offer polling services or government evaluations for public administrations, political parties, candidates or political figures. In February, 2016, the company had completed more than six thousand studies, totaling more than nine million interviews.[2]
Datafolha was created byLuiz Frias (born in 1964), the president of theboard of directors of Grupo Folha andUniverso Online (UOL) headquartered inSão Paulo, Brazil.
March 13, 2016, duringthe anti-government protests of 2016, Datafolha counted 500 thousand people demonstrating onPaulista Avenue, in São Paulo,[3] using an on-the-ground sampling methodology adopted since 2011 to estimate the size of mobile crowds in events such as the gay pride parade and the protests that occurred starting in 2013.[4]
The organizers of the protests routinely expressed their displeasure with Datafolha's numbers, considering them an under-estimation. At the invitation of the organizers, a survey by the Israeli companyStoreSmarts claimed to have counted 1.48 million people in the protest, by counting theIP addresses of smartphones detected in the region.[5]
July 16, 2016, Grupo Folha's newspaper Folha de S. Paulo published the headline "For 50% of Brazilians,Temer must stay; 32% asked for the return ofDilma," based on a study conducted by Datafolha two days previously.[6]
Days later, the journalistGlenn Greenwald accused Folha de S. Paulo of "journalistic fraud". Writing for the online newspaperThe Intercept, he suggested that it is "simply inconceivable" that in just three months the portion of Brazilians in favor of calling new elections had fallen from 60% to 3%, and that those that wanted the continuation of Michel Temer's government "skyrocketed" from only 8% to 50%. He argued that in the context of a question in the same poll showing only 14% approval of Temer's government, it's "extremely difficult to understand how [the claim] could possibly be true."[7]
Greenwald went on to say that based on the full data and underlying questions that Datafolha released after the headlines were published, he and others such as the journalist Alex Cuadros believed that the questions posed to those interviewed had been manipulated to prejudice voters against Rousseff in theimpeachment suit brought against her.[7]
Luciana Chong, a lawyer for Datafolha, defended the polling institute, alleging "that it was Folha [de S. Paulo], not her polling firm, that determined the questions to be asked."[7]
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