As you study for written tests, there are many resources available – books, apps, websites, etc. We will discuss some of those in future posts.
One resource that is available, and yet hardly known (by students, at least), is the School Norms Report. This report is compiled quarterly by the FAA, and gives written test result statistics for every approved AMT school.

How can this be useful to you? Well, it could help you be better informed when you choose your school, but if you are reading this, it is likely you are pretty much committed to a school already.
But, the other thing the report offers is a glimpse into the subject areas where your school might be a little weak. For example, if your school is below the national average in Fire Protection Systems, perhaps you can put a little more self-study into that area.
The reports look intimidating at first, but it is not that complicated. Download it (it is a pdf), search for your school name, and you will find tables like the one at the top of this post.
The numbers in the columns indicate the average percentage of questions school graduates got correct on the written exams. If the number is red, that means the school average is below the national average in that subject area.
So, for example, if I were a Central Georgia Technical College student (just choosing at random), I would feel a little more confident in Aircraft Covering (100%) than in Communication and Navigation systems (66.7%).
There you go, another tool in your test preparation toolbox!