I found a variety of online tests from Cambridge Universities ARC that provide an easy way to get an idea if you show symptoms of autism or one of the other autism spectrum conditions. I found them easy to complete and they gave me a good incite into how I see the world.
Their list of tests is here:
http://www.autismresearchcentre.com/arc_tests/
If you google the name of the test you can find online versions that you do not need to print. They have tests for adults, children and toddlers
Online AQ (Autism-Spectrum Quotient) test: http://www.channel4embarrassingillnesses.com/features/take-the-autism-test/
Online EQ (Empathy Quotient) test: http://glennrowe.net/BaronCohen/EmpathyQuotient/EmpathyQuotient.aspx
Online SQ (Systemizing Quotient) test: http://glennrowe.net/BaronCohen/SystemizingQuotient/SystemizingQuotient.aspx
Reading the minds eye (Revised version) test: http://www.questionwritertracker.com/quiz/61/Z4MK3TKB.html
Azaezl very kindly provided the link to the "Aspie-Quiz" http://rdos.net/eng/Aspie-quiz.php It it seems quite comprehensive. It also provides you a nice personalised pdf of your results.
The reading the minds eye test has brought up a lot of questions on the internet about whether it is valid or not. The problem is, (which is what I had to stop myself doing) is that I was answering the questions based on eliminating the answer I know are wrong and then trying to work it out from there. You are supposed to look at the pictures and take the first answer that pops into your head, then select the most appropriate word. Doing it logically I scored very high, a few hours later doing it on impulse I scored much lower.
As I mentioned on my other post, these are not ment to be used as a definitive diagnosis. They are good tool that might help you make sense of things and might help you with getting the process of an official diagnosis underway.
I am going to print them and take my results to the doctors with me for my next appointment as I find it hard to talk about these kind of things with doctors.
I totally understand that you may want to keep your scores private but if you would like to share I would be really interested to see what other people score.
on the AQ test I got 42
EQ test: 10
SQ test: 62
Minds eye test: 25
All right in the ASD range apart from the minds eye test which is in the average band.