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Consider a country that produces only two goods: pineapples and tractors.Suppose it is possible for this country to increase its production of pineapples without producing fewer tractors.In this case,its current output combination is inefficient.
Concurrent Validity
Concurrent validity is the extent to which test scores or measurements are correlated with other measures or outcomes that are theoretically related and taken at the same time.
Predictive Validity
How well a result from a test or scale forecasts subsequent performance in a connected area.
Face Validity
The degree to which a test or measure appears effectively to assess what it is supposed to assess, based on casual inspection.
Content Validity
An indicator of construct validity of a measure in which the content of the measure is compared to the universe of content that defines the construct.
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