I can't remember this word, it's been on the tip of my tongue for days. I am sure that this word exists but there's no synonym results I could find on Google. It means something like the inverse of correlation/evidence, "freak occurrence" possibly.
It's a word used to say something to the effect of, "you're referring to something as though it's connected". But that word describes the claim in a single word: "X information". A great example is something like;- person A sees person B in a car with a dog and then goes on to conclude that many people might drive with dogs in the car. The observation is "unrelated" to the reality or something similar, yet person A took it to have a connection and for there to be some underlying explanation. This event itself (not the observation) is an X. Talking about the event is using X information and is not very scientific.
edit: I found it. (anecdotal/anecdote, "anecdotal information")
based on someone’s personal experience or information rather than on facts that can be checked