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Scales of Measurement
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Terms in this set (4)
nominal
scale with two or more categories that represent named classifications and are not ordered in relationship to one another (1=inpatient; 2=acute)
ordinal
"categorical"; numbers representing the different categories are ordered or ranked in a linear way from least to greatest or greatest to least; categories not evenly spaced
interval
differences between values can be quantified in absolute but not relative terms and for which any zero is merely arbitrary; dates
ratio
distances are stated with respect to a rational zero; similar to interval in that it is also continuous and may assume any value along a continuum
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