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How Many DVRs Is Nielsen Watching?
from the numbers-please? dept
We noted last month that after years of talking about it, TV watching data from Nielsen was finally going to include a recognition that people watch TV differently when they have a DVR by including data on when people watched shows, not just whether or not they were watched. However, David Card has noticed an article claiming that this data comes from a grand total of 60 households that have DVRs and are passing along that data to Nielsen. There's a good chance it's a typo (600 seems more likely, considering the article notes plans to add 100 more per month), but it does raise some questions about the sample size Nielsen uses and whether or not it's a relevant sample.
Reader Comments
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Nielson Dvr Watching
They are coming to put that shit on my DVR on the tenth(shhhh, i'm not supposed to tell anyone).....And gonna pay me to do it too:)
only 150 bones....but hey it'll pay for part of my cable.....
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Re: Nielson Dvr Watching
How do you sign up for that?
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Re: Nielson Dvr Watching
I doubt that. Nielsen doesn't pay for people to be included in its sampling.
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No Subject Given
My understanding is that Nielsen has always been irrelevant, because everytime they came up with a more acurate way to chart TV viewing it showed there were less viewers than the previous method indicated, and was rejected by their customers in favour of the previous method. But that could just be apocrypha.
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Statistical significance
The statistical difference between a sample size of 60 and an infinite sample (i.e. the entire statistical universe or all watchers of TV) is very slight. Increasing the sample size to 600 isn't going to make that much difference unless your sample is non-random, which technically the Nielsen is, btw. In that case, a self-selected sample (all volunteers) no sample size is going to give you an accurate picture of your statistical universe which is very likely the entire problem with the Nielsen.
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Re: Statistical significance
go back to school.
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No Subject Given
If Nielsen paid my cable bill, I would gladly send them all the data from my home-built (and far superior to Tivo) Sage PVR.
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