major problem with Prometric practice tests

[malcs]

I just finished one of those $5 practice tests on DSST Technical writing. First off , it did not resemble anything described by those in the forum who took the actual test, and it was only 40 questions, which I highly doubt the actual test is that short.
But my major complaint is that at the end of the practice test they do not tell you what would have been the correct answers for the questions you missed.
Had I known this I never would have taken the practice test.

The ECE tests cost $65 dollars and don't tell you the reasons behind the correct answers either. Since the tests are timed you can't even go back and look at the questions at a reasonable pace. This is the reason that third party sites, such as IC, and third party books like the GRE study guides are so important. They give you carefully explained answers.