Validity
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A measure is valid when it actually captures the concept it claims to capture, rather than something merely correlated with it.
Show
Counting library visits measures library use; calling it a measure of intelligence is invalid.
Watch for
Validity and reliability are separate tests, and a study needs both.
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- Nothing yet depends on this.