Tests are designed to make sure students know the material.  They are not to trick them or cause them any stress.  I also try to make sure that each test is administered the same.  In spelling for example I pre-record the words, shuffle them, and play them to the class.  This ensures that they must listen, and that if a student misses the test they have the exact same opportunity for success as their classmates.  We are hoping to embed a playlist feature on the website so that students can practice hearing my voice give the test, and in different orders.  Until then, here is Friday's spelling test as the student will hear it.