Practice Quiz

EPPP Psychology

Category - Assessment and Diagnosis

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Test construction requires that tests have both validity and reliability. If reliability of a test is perfect (1.00), what is the standard error of measurement?
  1. 0.0
  2. 1.00
  3. Cannot be calculated
  4. The standard deviation of scores
Explanation
Answer: A - Standard error of measurement would be 0.0 if a test had perfect reliability. Calculating standard error of measurement is one way of estimating reliability, so a theoretical test with perfect reliability has no standard of error. In reality, no test would have perfect reliability.
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