On Oct 9, 10:13 am, "David Eduardo" wrote:
"IBOCcrock" wrote in message

ps.com...

"Radio ratings...accuracy? there may be hope... "

"Arbitron, the radio rating service (often derided as "Arbitrary-
tron") is frequently questioned for its accuracy, reliability and
timeliness. It's a low tech, intensely flawed system that depends on a
very small number of human beings sitting down with a pencil and
filling in a complicated diary that chronicles their daily radio-
listening habits which is tabulated and regurgitated to subscribers
twice a quarter."

http://blatherwatch.blogs.com/talk_r...ratingsac.html

Eduardo - you are a hoax and a farce!

Arbitron is not "frequently" questioned for its quality. There are
occasional issues, and Arbitron generally responds rapidly to any such
occurrence.

The new PPM is "high tech" using passive detection of stations being heard
by a panel of listeners that is proportional on over 20 stratification
variables. Even the diary method represents a standard process for
monitoring behaviour over time, used in many areas of business.

The principal of a sample projected into the total population under study is
a standard for all research. Sample size is determined based on cost vs. the
margin of error. The Arbitron samples are based on what the radio industry
can afford; there is no way of increasing the sample due to the cost.

Arbitron data is not released "twice a quarter." The PPM data is released
weekly, with a fuller report each 28 days, 13 full reports a year and 52
weeklies.

The diary data is released monthly, with 12 annual reports. Each is a
rolling average of the prior 12 weeks of data collection from a sample that
changes each week. Quarterly, a full report is issued, while the other 8
reports are summary ones.

In a market like LA, the diary report is based on a sample of over 30
thousand diaries per year, a relatively large sample for consumer research.
In the PPM, the LA data will be based on about 2000 persons daily, using a
panel which is already balanced in all demographic and socioeconomic groups.

In other words, none of what you posted is correct.

d'Eduardo,

-IF- One of the 20 Stratification Variables is 'NOT' an AM/MW Radio
DXer :
Then Nothing You or Arbitron has to Say is Relevant to thise
Newsgroup
of Avid AM/MW and Shortwave Radio Listeners.

and that's a fact-jack ~ RHF