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
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Builds on
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