Study shows spanked children could become bullies later in life
A recent study has shown that children who are spanked by their parents are twice as likely to develop aggressive behaviors later in life such as bullying, getting into fights, being mean to others, and being destructive. Previous studies have been conducted in the past to determine the effect of corporal punishment on young children, but no solid link could ever be establish given researches never took into account whether kids in the studies were aggressive to begin with.
Catherine A. Taylor of Tulane University’s School of Public Health and Tropical Medicine conducted the recent study that included families from 20 large U.S. cities and followed 2,500 kids. Taylor’s study took into account pre-existing conditions in kids such as psychological maltreatment, maternal depression and substance abuse and found that nearly half of the children had been spanked within 30 days of the study. Those kids who had been spanked twice by age three were twice as likely to be more aggressive at age five.
Although it is difficult to conclusively link spanking and aggression and put the issue to rest permanently, the recent study does help further cement the belief. Taylor stated that the fact that several studies have been conducted and keep finding a link is good proof that spanking and other forms of corporal punishment should be discouraged in favor of other forms of discipline for children. 
Ya know, I just want to sock the person who did that study!
If you conduct a study to try and further cement what you already believe to be true…I don’t think you’re going to do anything but convince (and deceive) yourself.
And if you don’t practice discipline with your children they could grow up to be a**holes.
Oh wait. Too late. That train has already left the station