Indiana University
Wilhelm Wundt (1832 1920)
This Human Intelligence page profiles the life and work of the German philosopher and psychologist Wilhelm Wundt (1832-1920). His interest in measuring human intelligence would be the foundation for Binet's scale of intelligence.
PBS
Pbs: Pioneer in Intelligence Testing
This site, which is provided for by PBS, gives a brief summary of Alfred Binet's major contributions to intelligence testing.