Retesting refers to administering or taking a test more than once. Organizations readminister tests and test takers opt to retake tests for various reasons. Regardless of the motivation, retesting is prevalent, and the practice of retesting is supported and encouraged by test publishers and governing organizations. The primary concerns associated with retesting are focused on how test scores change as a result of multiple attempts, what factors influence score change, how retesting affects validity, and the comparability of initial test and retest scores.


There are many reasons why an organization or individual would retest, but these various reasons are captured by four broad categories: improvement, verification, administrative, and psychometric.

Retesting for improvement involves retesting for the purpose of earning a score higher than that earned on the ...

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