Is Adwords quality score of adgroups affected by campaign CTR

[zach]

Hi

In my adwords campaigns, I have a few adgroups with 3%-9% CTR and a lot of adgroups with less than 1% CTR.

This brings down the campaign CTR to less than 1%

What I was wondering, is whether the low CTR of the entire campaign will affect the quality score of individual ads, even if they have high CTR.


Thanks

Zach