Here's the test.Quote:
Narcissism is one of the oldest and most written-about traits in psychology. The present test, the Narcissistic Personality Inventory (NPI), is one of the most classical and widely used tests in psychology. The test is designed to measure subclinical narcissism in the general population. That is to say, the test cannot be used to diagnose Narcissistic Personality Disorder (NPD) and someone who gets highest possible score on this test does not necessarily have NPD.
I've seen it before on other psychology sites, so as far as I know it is the most "legit" one you can find for free online.

