Have you participated?
The complexity of ANY human being is impossible to categorize. At least half of the answers cannot be explained with a simple yes or no.
For instance, I am overall an extravert by nature, but I am also often introspective, and not a partygoer. I would rather spend an evening with one or two friends and their wives/ladyfriends than attend a big party. The test does not allow for this, rendering it meaningless.