I'm apparently a squiggle too and I was thinking exactly the same thing. The two statistics aren't necessarily contradictory, though. Its perfectly possible that only 12-15% of people actually are right-brain thinkers, whle 46% of people taking the test were defined as squiggles. Maybe 46% of people like to imagine themselves to be right-brain thinkers or see themselves as having right-brain traits. Also, that particular test is a bit crappy.

I don't believe I'm a squiggle! I'm the responsible one, just a bit schizo at the same time!

Yeah, or the majority of people who do those kind of tests just happen to be the squiggly type.