Monday, March 30, 2009

Adventures in selection bias



I always love a naughty research study, and this one sounded like fun: Spanking 'brings couples together'...

Researchers at Northern Illinois University measured stress hormone levels in couples engaging in S&M activities, and found evidence that these activities, while causing some anxiety at first (which, I suppose is the point, right?) ultimately left the couples feeling closer.

And what was their research sample? People attending an S&M party.
Yes. Really.

So... S&M brings couples who are into S&M closer? You don't say!