What is it?
A concept. Intelligence is not a thing
Intelligence concepts
Francis Galton
General intelligence. Could be measured in a simple tests
Charles Spearmen
Supported the idea of intelligence testing.
Discovered a + correlation between a persons scores and consistency of results
g intelligence=A persone overall intelligence
Alfred Binet
How intelligence could be measured. Concept of Mental Age Begins
MA=Mental Age
Stanford/Binet
Stanford-Binet Scale
IQ=Mental Age over Chronological age x100.