May 1, 2007 – The topic is Arbitron's decision to start using portable people meters rather than diaries to measure radio listenership. The company hopes this will provide data that's more accurate than what's currently available.
May 1, 2007 – The topic is Arbitron's decision to start using portable people meters rather than diaries to measure radio listenership. The company hopes this will provide data that's more accurate than what's currently available.