Is "Campaign" what google bases your ctr on or each "Ad Group"?

Will 1 "Campaign" with 30 "Ad Group" get you better position then 1 Adgroup

[teeceo]

Google says: "ads earn their position based on performance (clickthrough rate, CTR) and CPC, so with a strong performance history, you could end up paying less to maintain the position of your ads.". My question is, if I have a "Campaign" with 30 "Ad Groups", will 1 click from each "Ad Group" count toward the (clickthrough rate) of the whole "Campaign" of words, bring my cost-per-click down and my position up, or is it each ad group (each word in each group) or do they base it on the whole "Campaigns" clicks?

teeceo.

[vibgyor79]

It is not the AdGroup CTR/CPC that matters.
It is not the Campaign CTR/CPC that matters.

It is the keyword CTR/CPC. They decide the positioning of your ads.

[teeceo]

owww o.k. Thanks.