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The '''Flynn Effect''' is the idea that human [[intelligence]] tests scores have supposedly been increasing at a substantial, sustained rate throughout the world. Studies that support this effect generally show that it is [[fluid intelligence]] (i.e. problem solving skills, reasoning, and [[learn]]ing ability) that shows much more significant gains compared to [[crystallized intelligence]] (i.e. learned information such as [[vocabulary]] or [[math]]).<ref>Graham, Charles and Plucker, Jonathan. "The Flynn Effect." 2010. Indiana University. http://www.indiana.edu/~intell/flynneffect.shtml</ref> The effect is named after James R. Flynn, who promoted the theory.<ref>  

The '''Flynn Effect''' is the idea that human [[intelligence]] tests scores have supposedly been increasing at a substantial, sustained rate throughout the world. Studies that support this effect generally show that it is [[fluid intelligence]] (i.e. problem solving skills, reasoning, and [[learn]]ing ability) that shows much more significant gains compared to [[crystallized intelligence]] (i.e. learned information such as [[vocabulary]] or [[math]]).<ref>Graham, Charles and Plucker, Jonathan. "The Flynn Effect." 2010. Indiana University. http://www.indiana.edu/~intell/flynneffect.shtml</ref> The effect is named after James R. Flynn, who promoted the theory.<ref>

Shalizi, Cosma Rohilla. [Book review of ''What is Intelligence?'' by James R. Flynn.] 2009. http://www.cscs.umich.edu/~crshalizi/reviews/flynn-beyond/</ref>

Shalizi, Cosma Rohilla. [Book review of ''What is Intelligence?'' by James R. Flynn.] 2009. http://www.cscs.umich.edu/~crshalizi/reviews/flynn-beyond/</ref>