NEW YORK, March 1, 2007—Arbitron Inc. (NYSE: ARB) has released the first “pre-currency” monthly audience estimates for Philadelphia produced by the Portable People Meter ratings service, and has taken another step in transitioning the market from diary-based radio ratings to electronic measurement.
The PPM ratings released this week are for the monthly survey of January 11 through February 7. This survey is based on an installed panel of 2,139 persons aged 6 and above against a target panel of 2,040.
This is the first release of two monthly “pre-currency” estimates that Arbitron is providing to allow subscribing stations and agencies the time to understand the differences between PPM-based and diary-based ratings, and to provide ample time for radio stations and agencies to train their sales and buying staffs on how to do business in an electronically measured marketplace.
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