Internet ratings systems, such as those provided by Nielsen//NetRatings or comScore Media Metrix, measure and rank the popularity of different websites and are used extensively in setting online advertising rates. The three typical online metrics are unique visitors, page views, and reach. In theory, these are simple measures: unique visitors measures the number of visitors
Real-time rating (RTR) methods – also called “real-time response” or “continuous response measurement” (CRM) – collect judgments or evaluation data from a subject during media exposure. While questionnaires provide data about the outcome of a perception (e.g., television viewing), RTR focuses on the process of viewing. Besides the application to academic questions of reception research
Nielsen is a name synonymous with television audience measurement throughout much of the world. Today, it is associated with a family of services that provide estimates of the size and composition of media audiences, loosely referred to as Nielsen ratings. Those numbers are essential to the operation of commercial media, since they constitute a currency