3 ms·
This data is from comScore. Their data source is a panel of users with their toolbar installed. It's shit, to say the least.
by meritt 12y ago
This data is from comScore. Their data source is a panel of users with their toolbar installed. It's shit, to say the least.
- dbenhur 12y agoComScore data is collected from panels with self-selection bias, but also incorporating significant statistical correction based on random selection panels and demographic data. http://en.wikipedia.org/wiki/ComScore#Data_collection_and_reporting http://en.wikipedia.org/wiki/ComScore#Data_collection_and_re...
- kacperp 12y agoThey also apply different methodologies from case to case. Some publishers include Comscore's tracking beacon, so their data will be based on a mix of panel and "real" tracking data whereas other data will only rely on the panel.