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LECTURE 23:    THE IQ CONTROVERSY

I.  The Issue

II.  The Evidence for the Premises
      III.  Bad evolutionary logic: the premises do not imply racial differences in IQ
  IV.  Genotype x Environment Interactions and the role of Education and Home Environment
 
  Norms of reaction for bristle number on fourth and fifth abdominal sternites in Drosophila melanogaster.  Each line represents a different strain (genotype) raised at three different temperatures.  From Gupta and Lewontin. 1986.  (See above for reference).
 
 
 
 
 
 
 
 
 
 
   

 
   
   


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