If All You've Got Is a Gizmo,
You've Got a Long, Long Way to Go
By David Lapovsky*

	Ratings System Components Introduction Sampling Panel Balance Data Processing Station Encoding and/or Monitoring Operations and Production Sample Weighting Useful Reports Multiple Market Measurement Client Service Support for the Industry MRC Accreditation Print-friendly: Click here to print entire document.

The Arbitron Portable People Meter (PPM™) is the best device available for the electronic measurement of radio audiences. The PPM has been proven, not just in the laboratory, but also in the real world, in trial after trial. The PPM has been subjected to tests by independent testing organizations, including the multinational Audio Meter Evaluation Group and the United Kingdom’s RAJAR.

The quality of a ratings service, though, isn’t determined just by the device used to collect listening information from respondents. The paper diary, which is the basis of some $20 billion in radio advertising transactions in the United States, is an exceedingly simple survey instrument. It’s not the paper diary alone, but rather the system that surrounds this diary that makes it the standard of radio audience measurement in the U.S. The same thing can be said about meters. It’s not the electronics of a metering device alone, but the whole system that surrounds the metering device that determines the usefulness of the audience estimates it collects.

A ratings system must consist of a whole network of know-how and support:

• expertise in a broad variety of technical areas relating to surveys
• the experience that comes with working with respondents and developing procedures that are appropriate for measurement,
• the large-scale infrastructure needed to support the unbelievably complex network of processes that create the final audience estimate,
• the support staff to explain, support and promote the audience estimates that are the product of the system.

That type of network is challenging for a single market and a single survey period. The challenge increases, markedly, when the system must work reliably in many markets, real time, around the clock, all year long.

Let’s consider some of the components of a ratings system and how they contribute to the usefulness of the eventual ratings estimate.

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*David Lapovsky is the former executive vice president of Worldwide Research, Arbitron Inc.

PPM™ is a service mark of Arbitron Inc.