Studies have presented different theories for the concept of intelligence. However, there is no agreement to one single definition of intelligence. The definition of intelligence presented by one individual may be totally different from what other has presented, because it depends upon the perception of an individual.
Cattell and Spearman have presented two of the most important theories of intelligence in the history. It has significantly influenced cognitive assessment tools. The definition presented by these two researchers has also given birth to the controversy surrounding the topic and definition on intelligence. Horn, Carroll and Cattell presented the ...