For 10 points, name this concept which is measured by the Stanford-Binet test, and is represented by "I" in IQ.
This concept is divided into narrow, broad, and general strata in John Carroll's model, and Robert Sternberg developed the triarchic theory for this concept. One test for this concept is named Raven's Progressive Matrices, and Spearman's g factor is used as a variable for this concept. The increase in the level of both the "fluid" and "crystallized" forms of this concept over time is called the Flynn Effect, and developments in technology attempt to improve the artificial form of this concept. For 10 points, name this concept which is measured by the Stanford-Binet test, and is represented by "I" in IQ.
This concept is divided into narrow, broad, and general strata in John Carroll's model, and Robert Sternberg developed the triarchic theory for this concept.
Intelligence [accept IQ until mentioned]