Term
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Definition
| A numerical measurement describing some characteristic of a population. |
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Term
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Definition
A numerical measurement describing some characteristic of a sample. |
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Term
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Definition
| Consist of numbers representing counts or measurements. |
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Term
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Definition
Categorical or attribute data can be separated into different categories that are distinguished by some nonnumerical characteristic. |
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Term
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Definition
Result when the number of possible values is either a finite number or a "countable" number. That is, the number of possible values is 0 or 1 or 2 and so on. |
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Term
| Continuous (numerical) Data |
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Definition
| Result from infinintely many possible values that correspond to some continuous scale that covers a range of values without gaps, interruptions, or jumps. |
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Term
| Nominal Level of Measurement |
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Definition
| Characterized by data that consist of names, labels, or categories only. The data cannot be arranged in an ordering scheme (such as low to high). |
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Term
| Ordinal Level of Measurement |
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Definition
| Data that can be arranged in some order, but differences between data values either cannot be determined or are meaningless. |
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Term
| Interval Level of Measurement |
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Definition
| Like the ordinal level, with the additional property that the difference between any two data values is meaningful. However, data at this level do not have a natural zero starting point (where none of the quantity is present). |
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Term
Ratio Level of Measurement |
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Definition
The interval level with the additional property that thre is also a natural zero starting point (where zero indicates that none of the quantity is present). For values at this level, differences and ratios are both meaningful. |
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