Biology 2244A/B Lecture : Levels of Measurement.docx
19 Nov 2012
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Classification of how variables are categorized, counted, or measured. No nominal (anything that can"t be ranked hair colour. Yes next question - can be ranked 1st place, 2nd place. No ordinal (in a race) time differences btw. Yes next question - temperature difference. No - interval (zero not absence of anything arbitrary value) Yes - ratio level of measurement (10/5 = 2 : which is a meaning full value, also have to be able to express as a meaning full ratio. There are equal difference between those values.
