Psychology / Unit 7 Psych 0816 short lesson, about 20 seconds
Validity
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The idea
Validity is the extent to which a test measures what it claims to measure.
In practice
An intelligence test's validity is assessed partly against outcomes it should predict, such as academic performance.
Where people slip
Validity is claimed for a specific use, not for a test in general. A valid use does not transfer.
Your place on the trail
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