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5 Cards in this Set
- Front
- Back
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What are the 4 scales of measurement in statistics? |
Nominal ordinal interval ratio |
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Describe how a nominal scale of measurement is used? |
In a nominal scale, numbers are used simply as names and have no real quantative value. |
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Describe and explain an ordinal scale |
It has the characteristic of a nominal scale ( Different numbers mean different things) Plus the characteristic of indicating greater than or less than.
Ex. Finish places in a race.
Judgments about anxiety, quality, and recovery Often correspond to an ordinal scale.
Characterized by rank order. |
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Describe and explain the interval scale |
Has the properties of both in nominal and ordinal scale plus the additional property that intervals between the numbers are equal. Ex. Temperature 0 is not the absence of the measurment and simple ratio statements cannot be used in interval scale. |
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Describe and explain the ratio scale. |
Has all the characteristics of the nominal, ordinal, and interval scales plus 1 other: it has a true 0 point which indicates a complete absence of the thing measured. Ex. Height, weight, and time are examples of ratio scale. |
