<p>A study came out a few months ago that showed you can improve your performance on tests by spending just a few minutes before the test journaling about your anxieties:</p>
<p>[Journaling</a> Before Exam Can Relieve Test Anxiety | Psych Central News](<a href=“http://psychcentral.com/news/2011/01/14/journaling-before-exam-can-relieve-test-anxiety/22665.html]Journaling”>http://psychcentral.com/news/2011/01/14/journaling-before-exam-can-relieve-test-anxiety/22665.html)</p>
<p>For example, in one experiment a high-anxiety group of students that wrote for 10 minutes averaged a B+ on a biology exam; the group of high-anxiety students that didn’t write averaged a B-.</p>
<p>Note: The link above is not to the original article, which appeared in the 1/14/11 issue of Science. You need a membership to see the original, I think, which is why I linked to the secondary source.</p>