No advice on how to study - other than taking the eri practice tests on their website (which was much easier than the actual test I took!). The good news is that failing eri no longer equals failing the class. Now, it counts as 5 points. You have 2 opportunities to take the test. If you do not score above the national average, you don't get your 5 points, but you don't fail out, either. Also, for the first semester eri (calculations & classifications), you only have to score above the national average in the calculation and the dosage & administration categories, not classifications. Hope this helps!