does quality score follow through out the account for each keyword?

Despite targeting different countries, does one good or bad quality score follow each keyword through the whole account?

 

each keyword will generates a history as it runs. No matter where you place that keyword, google will still remember its history.

So for instance, if a keyword had a particularly poor quality score and you decided to move it to another adgroup. It would still have a poor history, however, quality score will be reassessed if you change the ad or your landing page.

 

thanks t, that makes sense cause im using the same ad and landing page.