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17 Cards in this Set
- Front
- Back
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What are the three things required in data?
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Order, distance, origin
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What is order?
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Higher number means greater amounts of a characteristic
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What is distance?
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The difference between 1-2 is same as 3-4
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What is origin?
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Number zero means complete absence of characteristics
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What is nominal data?
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catagory, classification
order - not really distance - no origin - no |
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Example of nominal data?
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para-, di-, quadri- plegic
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What is ordinal data?
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Ranking - more of a characteristic
Order - yes Distance - no Origin - no |
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Example of ordinal data?
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Min, Mod, Max A
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What is interval data?
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Order - yes
Distance - yes Origin - no |
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Example of interval data?
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Degrees F, strength, ROM
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What is ratio data?
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Fulfills all - order, distance, origin
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Example of ratio data?
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Length, time, kelvin
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What are the two types of variables (in terms of numbers?)
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Discrete (dichotomous), continuous
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What is central limit theorem and %'s?
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68% within 1
95% within 2 99% within 3 std dev |
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What determines a good sample?
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Random, large population, representative
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What is Bonferonni adjustment?
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.05/#tests - multiple tests
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Assumptions needed for parametric statistics?
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Random samples, similar variance, ratio or interval
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