I'm no expert but my impression is that it's a widely accepted finding in psychology.
The average IQ is 100 by definition and constantly adjusted, yes, but you can keep track of which way it's being adjusted.
My fairly uneducated guess would be improved nutrition and reduced disease burden are big factors.
I'm no expert but my impression is that it's a widely accepted finding in psychology.
The average IQ is 100 by definition and constantly adjusted, yes, but you can keep track of which way it's being adjusted.
My fairly uneducated guess would be improved nutrition and reduced disease burden are big factors.