Introduction to the NEO PI-R

The Revised NEO Personality Inventory, NEO PI-R, is the gold standard of personality testing. It will be referred to here (as it is in many other places) simply as the NEO-AC.

The NEO-AC was developed by two psychologists, Drs. Costa and McCrae, in 1985, and then revised in 1992. It is composed of 240 self-report questions that are answered on a five-point scale (from strongly agree to strongly disagree). Each question is written so that anyone with a sixth-grade reading level will be able to take the exam. On average the test takes approximately 40 minutes to complete (though there is no time limit in taking it). Questions of test-takers can be answered by the person administering the test, if necessary, ...

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