(This column is adapted from a talk I gave at the University of Kyoto in January, 2012)
Those in the field of assessment often refer to two important standards that assessments are expected to meet, reliability and validity. Reliability meaning that the same results would be obtained if the assessment were given again, or if a different person was scoring the assessment.
Validity means that the assessment actually measures, assesses, what it claims to be measuring/assessing—and whether it predicts how one will perform in the future (Ormrod, 2005).
One type of validity is “face validity”—that is, it is accepted that the assessment actually does measure what it claims to measure, without needing statistical proof that it does. The road test portion of the driving test might be an example of that: We can easily agree that if we want to know if someone knows how to drive, we can sit…
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