Examlex
A(n) ________ occurs when there is only one provider of a service or product and no substitutes for the service or product exist.
Content Validity
The ability of an instrument to fully assess or measure a construct of interest by sufficiently sampling from the entire universe of items for which the instrument was designed to sample.
Well-Established Construct
A concept or theory that has been extensively researched and validated, demonstrating consistent and reliable findings across studies.
Validity Estimates
Measures that indicate how well a test or assessment tool measures what it is intended to measure.
Validity Error
A discrepancy or mistake that affects the accuracy or truthfulness of a test's results.
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