The Media Rating Council approves the company's use of traditional panel sampling alongside input from millions more homes. By Rick Porter Television Business Editor Nielsen has won accreditation for ...

Panel surveys repeatedly cover the same sample over stretches of time. Thus we collect what is called longitudinal data. An example: In a survey, the same 1,000 people are asked about their holiday ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Identifying causal relationships from observational data is not easy. Still, ...

With the start of the broadcast and football seasons this month, Nielsen today shared several updates for reporters covering TV, as the industry is adopting Nielsen’s enhanced Big Data + Panel ...