What do “reliability” and “validity” mean, and is the Predictive Index reliable and valid?
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چکیده
Reliability: This refers to the consistency or stability of a measure. If the concept being measured is assumed to be consistent, such as a personality trait, then the measure should yield similar results if the same person responds to it a number of times. If the concept being measured is assumed to be inconsistent, such as mood, then the measure should yield dissimilar results if a person completes it several times.
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تاریخ انتشار 2012