Konstantinos Vasilis Petrides ("K. V. Petrides") proposed a conceptual distinction between the ability based model and a trait based model of EI and has been developing the latter over many years in numerous publications.   Trait EI is "a constellation of emotional self-perceptions located at the lower levels of personality."  In lay terms, trait EI refers to an individual's self-perceptions of their emotional abilities. This definition of EI encompasses behavioral dispositions and self-perceived abilities and is measured by self report , as opposed to the ability based model which refers to actual abilities, which have proven highly resistant to scientific measurement. Trait EI should be investigated within a personality framework.  An alternative label for the same construct is trait emotional self-efficacy .
Jackson Browne sang a folk music tempo in the 1995 television special The Wizard of Oz in Concert: Dreams Come True when he performed as the Scarecrow. His rendition opens with verses about having Common sense which were not sung by Ray Bolger in the original film. It also included the deleted final verses. This song features Ry Cooder 's guitar and David Sanborn 's saxophone in the instrumental background. In the 1998 Album "Wholly Earth" the famed jazz songstress and activist Abbey Lincoln also sang it; the lyrics tell of a scarecrow lamenting to a blackbird about wanting common sense.