Define reliability & validity, describe and separate the
three methods for demonstrating validity. talk about the
relationship...
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Psychology
Define reliability & validity, describe and separate thethree methods for demonstrating validity. talk about therelationship between validity and reliability
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Reliability refers to the consistency of scores obtained on a test Validity of a test refers to the accuracy with which the test measures what it claims to measure There are three methods for demonstrating validity 1 Content Validity Content validity is determined by the degree to which the questions tasks or items on a test are representative of the universe of behavior the test was designed to sample In theory content validity is really nothing more than a sampling issue The items of a test can be visualized as a sample drawn from a larger population of potential items that define what the researcher
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