With the planned extension of the Arbitron Portable People Meter rollout in eight additional top markets this month, interest in the new research methodology at the recent NAB Radio Show was high.

Arbitron has begun beta-testing its new PPM360 technology. While the audience research company didn’t say which PPM markets have the new meters, spokeswoman Beth Webb said on its monthly client this ...

The Attorneys General of New York and New Jersey announced that Arbitron has agreed to take steps to ensure that panels for its Portable People Meter (PPM) radio ratings service are racially diverse ...

Black broadcasters told the FCC that Arbitron’s Portable People Meter (PPM) is deeply flawed and is causing serious damage to their business. However, as comments came due on the Commission’s PPM ...