What are the effects on the subjects of standardized psychological
testings such as the WISC or the MMPI?  Are there negative effects
associated with these tests?  Since every question is an inverted
statement, it makes sense that the subjects will undergo various
experiences during and following psychological testing.  Are there
inherent dangers to the subjects?

Not sure about the dangers of the experience of the tests but the
results themselves may have a harmful effect.

Some Scandinavian countries use psychometric tests in selecting
applicants for jobs, just like many other countries.  Except the taker
is allowed to see the results and destroy them before the prospective
employer gets a chance to see them.  Also employers in Italy arent
allowed to use them at all.  Maybe you will find out something about
yourself you dont want to know or others to know about!