When children expect aggression from others, it may cause them to be overly aggressive themselves, a new study finds.
While the pattern is more common in some cultures than others, a four-year longitudinal study involving 1,299 children and their parents finds it is true in 12 different cultural groups from nine countries around the globe.
It points toward the need to change how we socialize our children, to become more benign and more forgiving and less defensive.
