Nielsen: Weights In Optimization System Less Than Optimal
Jan 30, 2009, 7:31 AM
Nielsen Thursday informed clients that it has discovered an "issue" with the weights of its Audience Watch TV ratings optimizer and allocation system, and said it is reprocessing the data and asked clients to upgrade their system software to a new version. "When the system was originally developed there were certain limits put in place with sample weights. Since the introduction of extended home in some instances those limits have been exceeded and the correct weights are not being used. The problem has become more evident recently with the introduction of the new weights in September 2008. The issue is primarily affecting extended home viewers."