Not neccessarily true. You are assuming that these additional people have an IQ lower than what the average used to be. More people can be graduating from coll

Not neccessarily true. You are assuming that these additional people have an IQ lower than what the average used to be. More people can be graduating from college who have a higher IQ. An example may be Harvard. Harvard just lowered the tuition for certain incomes, thus more kids can now go to Harvard that were not able to be before due to finances. These kids may have an IQ higher than the average Harvard graduate and they would have increased.