QuestionQuestion

Gliner has developed a multiple-choice test called, “I want to get into grad school real bad” to make the selection process easier. (Also, if enough other schools are interested, he might make some money.) He wants to determine evidence for reliability. In three pages:

Describe at least three methods that he could use to assess reliability.
How is reliability different from validity?
After studies on reliability have been performed, Gliner concludes that the test is reliable. What, if anything, is wrong with this conclusion?

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The methods that Gliner could use to assess the reliability

Reliability is simply the consistency of a measurement used in scientific research. Usually, where a measurement is not consistent, then it is not possible to assess the outcomes of a study accurately, which diminishes the meaningfulness of the inquiry. Gliner could use a set of reliability tests to establish the reliability of the multiple-choice measurement. One of these is the test-retest reliability (Gliner & Morgan, 2000). This method requires Gliner to administer the multiple-choice measurement more than once to the same person. While this is the case, the subject must not form part of the sample to participate in the actual study. Nevertheless, the subject must fit the targeted population....

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