Big Five Inventory (BFI)
The big five inventory is a 44 item questionnaire.
It that measures an individual on five main areas of personality.
Items are scored on a 1-5 scale.
The scores are calculated as the sum of separate aspects of personality. e.g. Extraversion
Some items are reversed. For example a score of 1 would then be a score of 5.
John, O. P., & Srivastava, S. (1999). The Big-Five trait taxonomy: History, measurement, and
theoretical perspectives. In L. A. Pervin & O. P. John (Eds.), Handbook of personality: Theory
and research (Vol. 2, pp. 102–138). New York: Guilford Press.