Chapter 10
Intelligence
By Boundless
Over the last century or so, intelligence has been defined in many different ways.
![Thumbnail](../../../../../figures.boundless-cdn.com/20387/square/kim-peek-on-jan-16-2c-2007.jpg)
Theories of multiple intelligence contend that intelligence cannot be measured by a single factor.
![Thumbnail](../../../../../figures.boundless-cdn.com/20400/square/sibling-correlation-422.jpg)
Human intelligence is shaped by both internal genetic factors and external environmental circumstances.
![Thumbnail](../../../../../figures.boundless-cdn.com/4092/raw/iq-curve.jpg)
Intelligence testing has evolved over time as researchers continually seek the best method for measuring intelligence.
![Thumbnail](../../../../../figures.boundless-cdn.com/31566/raw/zvrsoslrrickvb2cc7vv.jpg)
IQ tests are used to measure human intelligence quotient as measured against an age-based average intelligence score.
Standardized tests are identical exams always administered in the same way so as to be able to compare outcomes across all test-takers.
![Thumbnail](../../../../../figures.boundless-cdn.com/20477/square/testtakingstudent.jpeg)
Intelligence tests and standardized tests face criticism for their uses and applications in society.