The Debunker: Are There “Left-Brained” and “Right-Brained” People?
It's written by Ken Jennings, the dude who won Jeopardy a bunch of times so it has to be right, right? Just in case you doubt Ken, I found a few other sources...
Left Brain vs. Right: It's a Myth, Research Finds
Despite what you've been told, you aren't 'left-brained' or 'right-brained'
Why the Left-Brain Right-Brain Myth Will Probably Never Die
Debunking the Left Brain and Right Brain Myth