Explain the difference between reliability and validity

Reference no: EM133351880

Question: How would you explain the difference between reliability and validity? Of the two, which should teachers be more concerned about and why? What reasons might explain why the reliability of teacher-constructed assessments tend to be lower than purchased assessments? Should the concern of poor validity and reliability prevent teachers from administering their own classroom-based assessments? Why or why not? , how would you explain the difference between reliability and validity? Of the two, which should teachers be more concerned about and why? What reasons might explain why the reliability of teacher-constructed assessments tend to be lower than purchased assessments? Should the concern of poor validity and reliability prevent teachers from administering their own classroom-based assessments? Why or why not?

Reference no: EM133351880

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