A importância de haver apenas um sistema de medição de audiências (GB)

«(...) BBC and the Commercial Radio Companies Association (CRCA) set up a radio industry research company - RAJAR Ltd - in 1992 which they jointly own. Prior to this, audience data were collected by two separate services: the BBC Daily Survey which monitored BBC radio, and the Joint Industry Committee for Radio Audience Research (JICRAR) for commercial stations. The problem with this was that different methodologies and the fact the figures were not independently produced cast doubt on their accuracy. As RAJAR (Radio Joint Audience Research) points out: "The creation of RAJAR has greatly improved overall confidence in radio as a medium over the years since 1992, principally because it provides a single accepted measure of radio listening"(www.rajar.co.uk).

(Fleming, 2002: 15)