anon answered on 27 Apr 2015:
Daniel Ansari mentioned a very good paper that jumps to mind when I hear about test anxiety. This is one of the few science based methods to assisting with this issue.
There is also a lot of studies on the benefits of sleep on helping anxiety. Encouraging students to get a good night sleep instead of pulling an ‘all-nighter’ cramming for the test may be useful – as science has shown you actually remember more if you had a proper nights sleep. Here is a nice and short Ted-Ed Talk on the importance of sleep which may be good to show a class a couple days before the exam: http://ed.ted.com/lessons/the-benefits-of-a-good-night-s-sleep-shai-marcu