Media
Portable people meters, which it was revealed this morning may be used to measure UK television audiences from 2010, have been criticised by American broadcasters.
Media Week reported that Clear Channel, Cumulus Media, Cox and Radio One have written to Arbitron demanding "immediate action" over concerns that a low sample size among the 18-34 demographic is denting ratings.
The meters are used to measure radio audiences in Philadelphia and Houston, and are being rolled out to New York today. Eventually, they will be used to measure audiences in the top 50 radio markets in the US.
"To date, PPM has not provided accurate or reliable data for all demographic groups," the letter, which was sent to Arbitron chief executive Steve Morris, claimed.
Media Week reported that Clear Channel, Cumulus Media, Cox and Radio One have written to Arbitron demanding "immediate action" over concerns that a low sample size among the 18-34 demographic is denting ratings.
The meters are used to measure radio audiences in Philadelphia and Houston, and are being rolled out to New York today. Eventually, they will be used to measure audiences in the top 50 radio markets in the US.
"To date, PPM has not provided accurate or reliable data for all demographic groups," the letter, which was sent to Arbitron chief executive Steve Morris, claimed.
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