NEO Personality Inventory
A 300-question personality diagnostic measuring a subject’s “Extraversion, Agreeableness, Conscientiousness, Neuroticism, and Openness to Experience”. The most up-to-date version of the test is the NEO PI-R, or the Revised NEO Personality Inventory.
Highly interesting description can be found here: http://www.sigmaassessmentsystems.com/assessments/neopir.asp
Fournier, G. (2010). NEO Personality Inventory. Psych Central. Retrieved on July 6, 2015, from http://psychcentral.com/encyclopedia/2009/neo-personality-inventory/