I know the FCI is a M.C. format exam. I do not know about all of the others. I use the Harvard PI website that grew from the Project Galileo site. The students log in, take the exam and log out. They do not see their results. The teacher does not grade the exam. I would think this eliminates the grader bias.
In terms of review etc... I typically give the 2nd fci exam after the year end cumulative exams. We review for the year end exams (either final exams or A.P. tests). I don't have a great statistical mind and I am not aware of how one truly validates exam scores. How does this review invalidate the results of either the semester exam, the AP Exam, or the FCI that is taken a day or two later?
So-called FCI gains are reported by those who give and correct the tests,
the circumstances under which the tests are given are unreported, the test
review procedures (there shouldn't be any) are unreported, the error
rates in correcting the tests are unknown, and, persistence, over time, of
the purported gains, if any, are unknown.