Examlex
The four states completely carried by the Populists in the election of 1892 were
Validity
The degree to which a research study or testing instrument accurately measures what it intends to measure.
Interval Measures
A scale of measurement where the difference between any two consecutive measures is the same, but it does not have a true zero point, e.g., temperature scales.
Equal Intervals
A measurement scale where the difference between values is the same across the scale.
True Zero
A point on a scale which represents a complete absence of the measured entity, not merely an arbitrary point.
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