Types of Validity

Types of validity

Content validity. A test is said to have content validity if the items or tasks of which it is made up constitute a representative sample of items or tasks for the area of knowledge or ability to be tested (often related to a syllabus or a course).

Construct validity. A test is said to have construct validity if the scores that a candidate gets on this relate in the same way to another test or form of assessment for the same aspect of knowledge.

Empirical validity. A measure of the validity of a test arrived at by comparing the test with one or more criterion measures.

Face validity. The extent to which a test appeals to candidates or to those choosing it on behalf of the candidates because it is considered to be an acceptable measure of the ability they wish to measure. It is sometimes referred to as ‘test appeal’.

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