tuffrings.bsky.social @tuffrings.bsky.social · 06/10/2026At least they acknowledge that binary data is actually categorical. But they said "technically", so the admission seems reluctant. I'm not sure why. 110
tuffrings.bsky.social @tuffrings.bsky.social · 06/10/2026Finally interval data can be either continuous or (more often) dIscrete, so it doesn't seem correct to include a definition of interval data in section 1 without a caveat. And I think most continuous variables are ratio data, so the lack of any mention of ratio data in section 1 also seems strange. 110
tuffrings.bsky.social @tuffrings.bsky.social · 06/10/2026Those four data types (nominal/ordinal/interval/ratio) are a very common classification, by the way. en.wikipedia.org/wiki/Level_o... They're not without criticism, but they're still widely taught, 80 years later.en.wikipedia.orgLevel of measurement - Wikipedia 110
