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In order to be useful, a test must be reliable. In other words, it must : performance.
a. produce the same results from one time to the next
b.predict other criteria of the trait being measured
c, measure what it is designed to measure
d. compare results againt etablished standards of.
i think the answer is a is this correct

  • psychology -

    You are right. Although it needs to be similar, it does not need to be exactly the same, because the variable being measured might not be completely static.

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