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Re:A Beginner’s Guide to Pay-Per-Click: Quality Score by suking on Wednesday May 25, 2011 @02:13PM (#2584934)
I thought QS was independent of match type and account wide for that KW...
Re:A Beginner’s Guide to Pay-Per-Click: Quality Score by rfergie on Wednesday May 25, 2011 @03:18PM (#2585156)
This is definitely not the case; I've seen different QS on different match types for the same keyword.
Re:A Beginner’s Guide to Pay-Per-Click: Quality Score by suking on Wednesday May 25, 2011 @04:53PM (#2585513)
Yep - just looked in my account. Usually +/- 1 though. Have you seen bigger variations?
Re:A Beginner’s Guide to Pay-Per-Click: Quality Score by rfergie on Wednesday May 25, 2011 @05:18PM (#2585599)
Have seen exact on a 7 and broad on a 10.

Discussion about probable reasons why in the comments of http://www.rimmkaufman.com/rkgblog/2010/09/28/negative-keywo...

Because of some negative keyword trickery on the broad match version we decided it was a reflection of the account level QS