What is Intelligence?

Intelligence is defined as the ability to perform a tsk with facility, speed, and adequacy. On the other hand, it is an innate ability to perform tasks excellently without help from others.

Thurstone, an American Psychometrician identified seven primary mental abilities, namely:

1. Perceptual speed is the readiness to attend accurately to some details in perception.
2. Spatial visualization is the ability to organize and manipulate spatial patterns.
3. Reasoning is the ability to understand symbolic relationships.
4. Memory is the ability to recall previously experienced or learned materials.
5. Numerical ability is the facility of working with numbers,, as in simple arithmetic.
6. Verbal comprehension is the facility with which one can understand words in communication and manipulate them in planning.
7. Word fluency is the ability to find and use words readily in communication.

Today, nearly all intelligence tests have items that measure these primary abilities.