Bringing my spouse to visit

[migook]

Hello

I am an American citizen and my wife is a citizen of Kyrgyzstan, we live in Korea. We are trying to visit America for a couple weeks, and from my research it seems a B2 visa is the best way to go, since a green card is only for those planning to emigrate.

Is this correct? What will she need to bring to the interview? (marriage certificate? my job/housing contract?) Is there a chance that we will be denied?

Thank you for your help