Raymond Cattell - Definition and Overview

Raymond B. Cattell (March 20, 1905 - February 2, 1998) was a British and American psychologist who theorized the existence of fluid and crystallized intelligences to explain human cognitive ability.

External links

• A Memorial to Raymond Bernard Cattell (http://www.cattell.net/devon/rbcmain.htm)
• Human Intelligence: Raymond B. Cattell (http://www.indiana.edu/~intell/rcattell.shtml)
• The Psi Cafe: Raymond Cattell (http://www.psy.pdx.edu/PsiCafe/KeyTheorists/Cattell.htm)

Example Usage of Raymond