Which of the following statements about the Flynn effect is true? ...

[joblessjake]

Which of the following statements about the Flynn effect is true?
 
  It validates the comparison of the IQs of older and younger people.
  It necessitates the renorming of IQ tests every 15 years or so.
  It is probably caused by genetic differences in intelligence.
  It indicates that adults lose some intellectual power as they age.

Question 2

The Flynn effect refers to the
 
  rise in an individual's IQ over the years.
  decrease in an individual's IQ over the years.
  rise in average IQ over the generations.
  decrease in average IQ over the generations.

[elyse44]

Answer to Question 1

It necessitates the renorming of IQ tests every 15 years or so.

Answer to Question 2

rise in average IQ over the generations.