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    Test scores out of 20: ordinal, interval or ratio

    Hello, I was indeed talking about degrees celcius, should have mentioned that! Thanks for your answer, it's very clear to me now. The distinction between number of correct answers and something like an IQ score is indeed a difference I did not immediately notice. I don't need it for anything...
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    Test scores out of 20: ordinal, interval or ratio

    Hey, thanks for your reply! As I was taught, interval scaled data is quantitative data in which differences have a meaning (so for example when you add +1 it always adds the same), but ratios don't mean anything (so for example doubling doesn't mean anything) and there's no fixed 0. We saw...
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    Test scores out of 20: ordinal, interval or ratio

    Hello, What scale of measurability do you assign to a dataset of test scores on an exam? e.g. 5/20, 5/20, 7/20, 18/20 Is this ratio-scaled data? King regards and thanks in advance