To me “move” in this context would sound unnatural, perhaps because it’s a verb as well as a noun.
I suspect that the suggestion of badness may have been intended when the term “regression to the mean” was first coined by Francis Galton. I think he was particularly interested in investigating exceptional people of various kinds. The OED’s first citation for “regression” in this sense is from him, and the exact phrase he uses is “regression towards mediocrity”, that last word being another one that generally has a somewhat negative sense.
To me “move” in this context would sound unnatural, perhaps because it’s a verb as well as a noun.
I suspect that the suggestion of badness may have been intended when the term “regression to the mean” was first coined by Francis Galton. I think he was particularly interested in investigating exceptional people of various kinds. The OED’s first citation for “regression” in this sense is from him, and the exact phrase he uses is “regression towards mediocrity”, that last word being another one that generally has a somewhat negative sense.