Download - Reliability and Validity Examples
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Reliability vs. Validity in Qualitative Research:
Which is Reliability & Validity ?
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Difference between reliability and validity
• Reliability: the degree to which a measurement procedure produces similar outcomes when it is repeated.
• E.g., gender, birthplace, mother’s name—should be the same always—
• Validity: tests for determining whether a measure is measuring the concept that the researcher thinks is being measured,
• i.e., “Am I measuring what I think I am measuring”?
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Note:
• a valid test is always reliable but a reliable test is not necessarily valid
• e.g., measure concepts--positivism instead measuring nouns—invalid
• Reliability is much easier to assess than validity.