This was the format used way back when I had my test at the NSA.
They used a Relevant Control Test format in which there were 4 relevant test questions, each also serving as a control. Assuming they were testing to see if a test subject reacted more to one relevant question than to the other three, how could one use countermeasures?
The relevant questions were on "unauth foreign contact", "disclosure of classified info", "membership in subversive organizations", and "Do you plan to answer all questions truthfully".
BTW, I didn't pucker.
TC
Mr Cullen
An excellent question and the first post that I think I could answer but choose to decline.
Countermeasures hold the possibility of success, but successful employment by an amature against pros, is a long, long shot.