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
Last reviewed: By John M. Grohol, Psy.D. on 28 Jul 2010