In scientific assessment of variation, a typical broad measurement of what’s normally expected is the range between 2 standard deviations above the mean and 2 standard deviations below the mean. In a normal distribution of events, 95% of events will have measurements within +/- 2
The more often children are spanked, the more likely they are to continue to defy their parents in the short term, and to exhibit anti-social behavior, aggression, mental health problems, and cognitive difficulties in the long term.
Want to know what it’s like being a black male in America who needs help? Ask Uri Gneezy, John List, and Michael K. Price. These researchers completed work for the National Bureau of Economic Research published as Paper #17855 in an ongoing series. Titled “Toward