Not peer reviewed, but here's something. Note the date.

http://www.time.com/time/magazine/ar...836176,00.html


On May 13, 12:28*am, romeomike wrote:
Tina wrote:

* Your (attempted) superior attidude reminds me of

some studies that were done on MD pilots a long time ago, and maybe
JFK Jrs at that time: their attitude of whatever - being superior? --
led to an increased accident rate.

Have a reference for those studies?