Need advice for testing of hypotheses related to the self-citation method

[ReneZ]

Since the list of most frequent words is inconsistent from one section to another there doesn't need to be a constraining mechanism, the most frequent words are what they are.

For me it remains an open question, perhaps precisely because there should be no constraining mechanism. In normal text, the most frequent word (whatever it is) comes up most, because it is used a lot.
In an auto-citation environment, it comes up (like every other word?) because it is similar to a previous word on the page. But it comes up more often. How is that? This is something that can be checked.

I guess the auto-citation should allow for words to be simply copied from previous ones without change...