Educational Assessment quizzes
How grades and feedback shape learning, and why assessing progress means more than giving a grade.
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From Educational Assessment: Why a Grade Can Stop Learning
A bathroom scale always reads exactly 2 kg too heavy. In assessment terms, how would you describe it?
- Neither reliable nor valid
- Reliable but not valid
- Valid but not reliable
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Answer: Reliable but not valid
It is consistent, so it is reliable, but it does not measure the true weight, so it is not valid: reliability is necessary but not sufficient for validity.
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