Intelligence is the highest attribute of human beings. Different psychologists have defined intelligence differently. Lewis Terman explains intelligence as, an ability to think on an abstract level.
David Wechsler defines intelligence as, “the aggregate or global capacity of an individual to act purposefully, to think rationally and to deal effectively with his environment.” In 1927, Charles Spearman with the help of a statistical method called factor analysis separated and identified two different factors of intelligence viz. General factor (g) and Specific factor (s).
1. General factor is the minimum competence required to carry out daily work.
2. Specific factor includes abilities which are required to solve problems in specific areas.
