MarketingProfs

MediaBuyerPlanner: Arbitron is increasing the sample size of its RADAR network radio ratings service by twenty-five percent from 100,000 diarykeepers to 125,000 diarykeepers. This will allow Arbitron to expand the Market by Market Reporting tool, which currently reports the top 25 DMAs, to the top 50 DMAs by September 2006.
Starting with the release of RADAR 89 in June 2006, more than 6,000 diaries were added to the sample of the most current quarter of the RADAR report, going from the current sample size of 100,000 diaries to 106,299 diaries. By the release of RADAR 92 in March 2007, the RADAR radio network service will be based on an annual sample size of 125,000 diarykeepers.