This article is from the Psychology FAQ, by Rolf Marvin Bøe Lindgren roffe@tag.uio.no with numerous contributions by others.
No. Because there's money in them, and also because:
The purpose of any test is to differentiate the test takers from those
who have already taken the test. Therefore, the conditions under which
the test is administred should always remain the same.
Also, the publisher of a test normally wants to keep some level of
control over test administration. This is because the value of a test
decreases if the test items becomes generally known, or if it is known
that the test has previously been administered under less than serious
circumstances.
Therefore, psychological tests are usually not only copyrighted,
several tests can only be administred by licensed psychologists who
have completed courses in administring the test.
Sometimes the manuals are publicly available.
What is sometimes available are usually quick-and-dirty variants of
the MBTI.
 
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