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

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-keywords-do-not-affect-google-adwords-quality-score/ 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