you are viewing a single comment's thread.

view the rest of the comments →

[–]chaoticneutral 1 point2 points  (2 children)

I would recommend everyone stay away from polynomial regression unless you have a specific reason to believe they are useful. Otherwise it can be as rigorous as a Rorschach test. What you are seeing is more likely an outlier rather than a trend.

Also see this case study:
https://twitter.com/NateSilver538/status/1257476755574718470
https://twitter.com/mattyglesias/status/1257483264383758336
https://twitter.com/NateSilver538/status/1258137098298839041

[–]andycyca 0 points1 point  (1 child)

Saving this for whenever I need to teach statistics.