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Validity [5] of an assessment is the degree to which it measures what it is supposed to measure. This is not the same as reliability, which is the extent to which a measurement gives results that are very consistent. Within validity, the measurement does not always have to be similar, as it does in reliability.
Administering one form of the test to a group of individuals. At some later time, administering an alternate form of the same test to the same group of people. Correlating scores on form A with scores on form B. The correlation between scores on the two alternate forms is used to estimate the reliability of the test.
consequential validity; face validity; A good assessment has both validity and reliability, plus the other quality attributes noted above for a specific context and purpose. In practice, an assessment is rarely totally valid or totally reliable. A ruler which is marked wrongly will always give the same (wrong) measurements.
A 2013 German study studied the validity and reliability of a DISC assessment, Persolog, to see if it was up to standards for the TBS-DTk [14] the test assessment system of the Diagnostics and Test Board of the Federation of German Psychological Associations. The study found that it "largely" met the requirements in terms of reliability but not ...
e. Evidence-based assessment (EBA) refers to the application of research and theory in selecting constructs for a specific assessment purpose, as well as informing the methods and measures used in the assessment process. [1] This approach recognizes that, despite data from psychometrically robust measures, the assessment process inherently ...
Construct validity is the appropriateness of inferences made on the basis of observations or measurements (often test scores), specifically whether a test can reasonably be considered to reflect the intended construct. Constructs are abstractions that are deliberately created by researchers in order to conceptualize the latent variable, which ...
Test validity is the extent to which a test (such as a chemical, physical, or scholastic test) accurately measures what it is supposed to measure.In the fields of psychological testing and educational testing, "validity refers to the degree to which evidence and theory support the interpretations of test scores entailed by proposed uses of tests". [1]
Skill assessment is the comparison of actual performance of a skill with the specified standard for performance of that skill under the circumstances specified by the standard, and evaluation of whether the performance meets or exceed the requirements. Assessment of a skill should comply with the four principles of validity, reliability ...