If you are on-campus you will see the Full Text SIT links automatically because you are recognized as being on campus.
To access from off-campus follow the instructions below (This is a one time setting you need to make. Once your preferences are set, Google Scholar will save the settings.):
Go to Google Scholar and click on 'Settings' on the top of the screen. Select the 'Library Links' tab on the left hand side of the screen. Do a search for "SIT Graduate Institute / SIT Study Abroad" in the search box and check the box and click the 'Save' button.
Once you are set up you will see Full Text @ SIT links next to items in a Google Scholar search that the library has full-text in the databases. Clicking on the link will bring you to a page with a database option. Make sure you use the Full Text @ SIT link to get to the full-text. Clicking on the article title will not bring you to the SIT databases.