Minimum bid different for each ad group

[lwhistler]

I'm sure people of noticed this that if you enter the same search word in the add groups that the minimum bid might be different. Example:

Ad group #1 "molson" min bid $0.50
Ad group #2 "molson" min bid $1.00

[AdWordsAdvisor]

Good observation, lwhistler, and you are quite correct.

Yep, the Quality Score does not 'belong' to a keyword. Instead, it is a measure of the quality of the keyword in the context of the ad it shows.

Excerpting from the AdWords Help Center:

Quality Score = keyword's CTR + relevance of your ad text + historical keyword performance + other relevancy factors

Quoted from:

How is the Quality Score calculated?
[adwords.google.com...]

AWA