alamode81
Forum Newbie
Topics: 4
Posts: 9
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Hello,
Does anyone here have a good understanding of the stat tests? the way Kaplan has it written: we use Analysis of Variance (1 nominal, 1 interval), Chi Square (2 nominals), Matched Pairs T-Test (1 nominal, 1 interval), Polled T-Test (1 nominal (2 groups), 1 interval), Pearson Correlation Coef (2 interval)....What does NOMINAL and INTERVAL mean? I don't have a clear understanding of the definition that they give. Please HELP! THANK YOU!!!
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| mjl1717
Forum Hero
Topics: 955
Posts: 5,450
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Interval- means quantifying something, giving it a particular #, for example height , b.p. or drug dose
Nominal can be anything! This , that, those, almost any subject.
Hope this helps.
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| phuluong2k
Forum Fanatic
Topics: 714
Posts: 2,008
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Just few more inputs
Nominal value can be considered as name, group, category
eg: the black & white population; male & female sex; young & old population; patients receive drug versus patients receive placebo in a study etc
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| phuluong2k
Forum Fanatic
Topics: 714
Posts: 2,008
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Nominal value expressed by percentage, proportion
Interval value expressed by a mean
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