![]() ![]() Validity means that something measures what it is meant to measure. In this guide, we will run through the definitions of validity and reliability, the different types of each concept, and the differences between the two. The two concepts are closely related, but there are key differences which sets them apart. When creating an assessment, organizations must consider how valid the results are, as well as how reliable (or consistent) they were throughout the testing process. In psychometrics, validity and reliability are used to assess how well a test measures something.
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