Over the past 75 years, IQ test scores have increased dramatically in industrialized nations. What is the most probable explanation for this increase in test scores?

+3 votes

 

Mating patterns changed in the past century.

The genetic composition of the population was altered by selection of individuals resistant to infectious diseases such as influenza.

Better education has resulted in a population with skill sets that help performance on IQ tests.

The genetic composition of the population results in more intelligent people.

 

asked Dec 27, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

Better education has resulted in a population with skill sets that help performance on IQ tests.

 

answered Dec 27, 2012 by LeafHy ~Expert~ (895 points)

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