There is an interesting questionnaire about your investing profile on
which claims to tell you your investing IQ.
It came to me via one of the financial organisations from whom I had had a free trial some time ago.
I did it and found it very accurate. e.g. It pointed out my worst weakness which is being unclear about why and when to exit a stock, and various other characteristics which were really close to the bone, and gave suggestions for how to overcome these weaknesses.
I'd be interested to hear comments from other forum members who feel like doing the test - it takes about 10 minutes and your results are emailed back within about 15 minutes.