Margaret Ayer Barnes Quote

Jean's investigations have convinced her that the mean intelligence quotient increases with the order of birth.


Within This Present (1933)


Jean's investigations have convinced her that the mean intelligence quotient increases with the order of birth.

Jean's investigations have convinced her that the mean intelligence quotient increases with the order of birth.

Jean's investigations have convinced her that the mean intelligence quotient increases with the order of birth.

Jean's investigations have convinced her that the mean intelligence quotient increases with the order of birth.