This Forum has 2 parts (questions). Be sure to answer both parts.
What does it mean when a tool of assessment is characterized as reliable? Under what conditions might one expect an otherwise useful tool of assessment to be unreliable?
Consider the meaning of the following statement:
“A test is valid.” How absolute or relative is test validity?
Can a test be valid at one time and place with one population of test-takers and invalid at another time, in another place, or with another group of test-takers?
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