Manual muscle testing grades illustrate which data level?

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Multiple Choice

Manual muscle testing grades illustrate which data level?

Explanation:
Manual muscle testing grades illustrate an ordinal data level. They provide a clear rank order of strength—from no contraction up to normal strength—but the steps between grades aren’t guaranteed to be equal, and there isn’t a true, meaningful ratio between levels. This means you can say one score is higher or lower than another, but you can’t assume equal intervals or perform arithmetic that relies on them. So the data are best described as ordinal rather than nominal, interval, or ratio.

Manual muscle testing grades illustrate an ordinal data level. They provide a clear rank order of strength—from no contraction up to normal strength—but the steps between grades aren’t guaranteed to be equal, and there isn’t a true, meaningful ratio between levels. This means you can say one score is higher or lower than another, but you can’t assume equal intervals or perform arithmetic that relies on them. So the data are best described as ordinal rather than nominal, interval, or ratio.

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