Not all of us, no.
But, if you reckon there is any validity at all to personality tests, learning styles and all such pseudo-scientific hokum the answer is ‘yes’, you have been duped. This digestible and brief article presents a small sample of the compelling evidence.
Address of the bookmark: http://fortune.com/2013/05/15/have-we-all-been-duped-by-the-myers-briggs-test/