Charles Spearman was a British psychologist who proposed the two-factor theory of intelligence in 1904. According to this theory, intelligence has two components: general intelligence and specific abilities.Spearman hypothesized that the "s" component was specific to a particular aspect of intelligence and believed that all intellectual activities have a single factor in common called the general factor aka the "g" factor(Spearman, 1904). How is the two-factor theory of intelligence still used in psychology today? Provide examples showing how this theory is applied.