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Psychology / Unit 7   Psych 0815 short lesson, about 20 seconds

Reliability

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The idea

Reliability is the consistency of a test's results across occasions, forms, or scorers.

In practice

A reliable test gives nearly the same score to the same person two weeks apart.

Where people slip

Reliability is necessary and not sufficient. A consistently wrong measure is perfectly reliable.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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