It's also WAY too small a sample size to be considered accurate.
0.0005 of the population in the market is carrying meters. I realize they'll never get a "great" sample as getting a couple hundred thousand meters out there would be near impossible, but at least get the number close to 1%. Of that 0.0005 of the people carrying meters only less than 10% of those are cell-phone-only households (even though one in six households in america only have cell phones) which means the numbers for people on the younger side will be WAY off also. 86% of those living in cell-only households are 44 and younger. This means the over 90% polled with landlines are very likely over 45 and the less than 10% with cell only are likely 44 and younger. This isn't one small demo, this is a huge chunk of people that will be very rarely included in PPM numbers. As you see on page 9 of the PDF their target for each age group was 100, they went over 100 on ALL the groups 44+ and missed 100 on all but one of the groups under 44. They are missing all these people that should be counted. I'll agree that PPM is a step in the right direction, but there needs to be more than 2K meters out there to get a good sample size. To get a decent sample for the Boston Market approx 16K meters would need to be used, but from what I've heard the number will stay closer to the 2-3K range. With the low sample size and the not so random (when there are large difference in demographics between cell phone only and landline households you can't say it's random when they select from each group separately and not at the same % of the national avg) polling then I'll never truly believe these #s.
So, per usual, ad rates are set, jobs are lost, stations are downsized, and so on based on a terrible sample size.
Is PPM better, sure....but it hasn't fixed the system yet.