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Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of θ, where .
Concurrent Validity
The extent to which test results correlate with those of previously established tests of the same ability or trait.
Content Validity
The extent to which a test represents all facets of the concept or constructs it is supposed to measure.
Predictive Validity
The extent to which a score on a test or assessment predicts future performance on a related task or outcomes.
Content Validity
The degree to which test items are representative of the content it aims to cover.
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