Two Primary Considerations in Psychological Measurement Are Validity and Reliability

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The Answer is The answer should provide the following information: (1) Validity refers to the extent to which a measurement and a property are conceptually related. A valid measure is one that measures what it claims to measure; in other words, the operational definition of a property must overlap with the conceptual definition of that property. A researcher using invalid measures is claiming to measure one thing, but is instead measuring something else; (2) Reliability refers to the consistency of a measurement. A reliable measure gives the same kind of results each time it is used. So, for example, a reliable measure of intelligence would yield the same kinds of test results each time it is administered, just as a reliable 12-inch ruler would measure 12 inches no matter who was holding it. A researcher using unreliable measures has no basis for knowing that the measurements taken reflect aspects of the property to be measured.

Two Primary Considerations in Psychological Measurement Are Validity and Reliability

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Two Primary Considerations in Psychological Measurement Are Validity and Reliability

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