Arbitron will boost the sample size of its RADAR network radio ratings service by 25%, to 125,000 diarykeepers, the research firm announced. As recently as 2002, the sample was around 12,000.
The company said it also will expand its Market by Market Reporting tool to the top 50 DMAs by September. It now covers the top 25.
RADAR Sample Is Increased
RADAR Sample Is Increased
