Many Times Student Face Examination-Phobia During Examination Time in Such Time A teacher What Should To Do? or What Kind Of Strategies teacher should Apply to Reduce Academic Stress Between Students...............
One of the key factors is trust (in you by the student, but starts in part from you trusting the student). Show them that you care about them through informal engagement, through being honest when you do not know something and looking it up, and through acknowledging that they are real people with things going on in their lives - including conflicting demands from other courses which may leave them struggling to prioritize studying for YOUR course.
Additionally, provide transparency and clarity. You don't need to make the test easy, but they should have a clear idea what they will be tested on before hand, what is being asked on the test, and, especially if it is timed and not all students complete it, what the relative weight of items is. After both formative assessments (before the test) and summarize assessments (the test itself and any large projects), provide relevant and timely feedback ... this will help them learn, and also show that you care more about their learning than taking away points.
Finally, consider whether a test is actually the best way to assess. Would a more authentic or less time-constricted assessment do better? Is a closed-book test necessary or would open-book (or "bring your own hand-written notes" ...which forces them to really prepare) work...if you really want to know that they understand, can apply, synthesize, evaluate, and/or create, then there is no real value in memorization...it is much more important that they can use resources (Such as their book or notes) appropriately for a task. After all, in the "real world" it would be very poor practice to stop professionals from using any resources they have access to --- in fact, appropriate use of resources and a self-learning approach is necessary on the job for most professions.