Is There a Scale of Narcissism?

In addition to the belief in astrology scale, they also included a single item asking how well participants thought astrology is supported by scientific research. And they use this as a separate variable. They measure the big five personality traits with something called the IPIP 30 personality Scale. The narcissistic grandiosity subscale of this includes items like, I know that I am special because everyone keeps telling me so and I insist on getting the respect that I deserve.