Kyle D said:
Anyone that makes the argument that PPM's aren't WAY more accurate, obviously doesn't know what they're talking about. 90-percent of PPM holders could forget to dock their units for a night and the information from the other 10-percent would still be more accurate than the diary on its BEST day.
That is not precisely true. While the PPM, being a panel, has an average weekly in-tab that exceeds that of the weekly diary sample, the number of panelists active on any single day is very small. Let's take LA: 3275 panelists (vs. 7700 diaries per 12 week diary survey) of which the average should be around 2000 daily in-tab (the rest did not carry the minimum time). If you take Black Males 18-24, a group that is about 0.5% of the population, there would be less than 10 meters active on a day and about 5 at any particular time of the day. Does that sound accurate?
Considering that the sample is not adequate in all of 18-34 in two of the three markets, after 5 years of "testing" and in New York is less than 65% of the proportional quota, we have real issues, as the joint letter to Arbitron today indicated.
[/quote] As for the whining from the stations here in Philadelphia, as well as in Houston, about the difference in the "currency", if they'd just buck up and learn how to use the new data this issue would fade away.[/quote]
We know how to use the data... those of us in Houston have been receiving it for 30 months. The fact is that agencies are taking the "new reality" of a PUR of around 11 to 12 in the PPM to try to get rates that are 30% or more below those attained with the diary method, without taking into account the fact that the measurement, whenever it is accurately done, is more precise. When Nielsen went into the LPM, it took lawsuits and the threat of intervention from Congress to get things more in line.
But, they're human and have that urge to complain, so the story continues to gain steam. Arbitron has plenty of materials and had numerous "training sessions" on how to interpret the info (just as Nielsen did when Mr. Murdoch launched the coalition against the LPM markets a few years back). That all faded over time, and if you didn't see it, Nielsen recently announced that it's taking LPM service to the top 55 or 56 markets, so I think TV buyers have learned how to use that data.
The Philly and NY markets are not even MRC accredited; that should give you a clue that the issue is sample and proportionality.
As a side note, TV national overnight ratings have been generated using a set top recording box for years. The local market ratings were generated using diaries (just like Arbitron) until the recent switch to LPM's - a set top box similar to that used for national ratings - and similar in scope to PPM's.
And it took legal action and pressure from the Hill to get things right with TV.
I definitely don't think we've heard the end of the Arbitron hoop-la with NYC about to go live and LA coming soon, but in the end I believe that this story will go away and PPM will survive.
Run over to All Access and read the joint letter from Cox, Cumulus, Clear and Radio One to Arbitron. It is labeled as an "ultimatum" and is based on sample and proportionality, not ability to sell. NY is already "live" but just not currency, by the way. And LA, Riverside and Chicago are slated to start in 6 weeks.
Heck, the PPM does not even give us a differentiation for in car and at work listening!