Kimberley, you have the correct doi for this article: 10.1001/archpsyc.62.9.953 . Just open a new browser tab, and either type or paste the doi into the address bar, just like you would a url for a website, and press 'enter'. This should take you to a page where you can download the .pdf version of the article.
Let me know if this doesn't work.
Camilla Baker