According to their website:
A Nerd is someone who is passionate about learning/being smart/academia.I took the quiz, and it declared that I am "Tri-Lamb Material" because I scored high on both the Nerd and the Dork scales, but not so high on the Geek scale (click on the link to see a more detailed description). Odd, I always thought of myself as a Nerd and Geek, but not a Dork.
A Geek is someone who is passionate about some particular area or subject, often an obscure or difficult one.
A Dork is someone who has difficulty with common social expectations/interactions.
My lovely wife took the quiz, and it declared her "Joe Normal" because she scored low on all three scales.
There's nothing like a good personality test to remind you of the fact that you married up.