(I tried to take the test, but when I clicked on a colour, nothing happened...
)
This reminds me of a yearbook my nan bought recently. The idea was that you would go to your birthday, and it would have a description of your personality. Of course, I checked mine, and it worked! Then, just for good measure, I checked about four random dates... all of which also worked, despite being unrelated to my birthday. It's based on a clever trick whereby the comments are sufficiently general that they can apply to anyone (because they're all qualities we find desirable, whether or not we already have them) Other times they're just things everyone feels at one stage or other in their lives. The trick works because the comments are articulated such that you really feel as if you've been spoken to directly.
Having said that, humans also have a tendency to associate emotions with colours (we're proficient at personification), so that could also contribute to some of the answers.
I studied these ideas briefly in the philosophy subject "Science, Reason & Reality" last year as a part of learning about Karl Popper's Falsificationism -
http://en.wikipedia.org/wiki/Falsifiability. 'Twas a fun subject!
