this post was submitted on 12 Mar 2024
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Haha, I teach statistics and it's usually a tough one walk on. You need a natural zero for ratios, even if the concept is a little weird (like 0 height). 2m is twice 1m, etc. My go to with interval (the non ratio continuous metric) tends to be likart scales. Or yelp stars, or any other arbitrary zero. I do mention temps, though
Makes sense. I always knew Kelvin started at absolute zero, but I don't think I had ever heard of a ratio scale. I'm sure it has some kind of statistical implications about how you can analyze the data right?
Yeah, something like that. Scales of measurement is mostly a formality in undergrad but it does determine eventually what you can and can't do with that scale.