What a Bizarre Way to Determine "The Most Racist Place In America"

Here's how "the authors of one peer-reviewed study" did it:

They compared searches for the “N-word” with searches for non-racist terms like “migraine(s),” “economist,” “sweater,” “Daily Show” and “Lakers.”

Why those particular "non-racist terms"? Why not, say, "cauliflower," "Scooby Doo," "hemmorhoids" and "tweezers"?