Media Rating Council
Media Rating Council revokes Nielsen Audio PPM accreditation in several markets
Nielsen says it is working with the MRC to address concerns and improve its measurement services.
MRC reaffirms accreditation for Nielsen’s Big Data + Panels currency
The MRC said it is satisfied Nielsen has addressed points made in a March marketplace update that expressed concern about some of the intelligence firm's methodologies.
Media Rating Council questions Nielsen’s revised audience estimates
The watchdog reported a 10 percent decline in adults 25–54 impressions and raised concerns about panel representation and modeling accuracy.