Dear Anonymous,
I have been thinking about your project, and not sure this idea will be "measurable," in the conventional sense...
But for your science fair, consider documenting the cultural and scientific contributions of people who are outside the realm of mental normalcy; neurodivergency.
Temple Grandin, herself autistic, has made a list, for example. Both Albert Einstein and Sir Isaac Newton are now believed to be very likely on the autism spectrum, prolly Asperger's. Composers, philosophers, artists...John Forbes Nash, the Nobel Prize-winning mathematician, was paranoid schizophrenic.
And for your quantification, you could assess where the world might be without their contributions...
