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If prices increase by the same percentage that quantity demanded decreases, then the demand curve is
Internal Consistency
A measure of the reliability of a psychological test or survey, reflecting the extent to which all items assess the same characteristic.
Face Validity
The extent to which a test or measurement appears effective in terms of its stated aims to those taking or observing it, on the surface level.
Construct Validity
The degree to which a test or instrument measures the theoretical construct it is intended to measure.
Correlate
To possess a reciprocal relationship or link, where one element influences or relies upon another.
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