Obstacles to reliability and validity of a test
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What are some types of errors that can interfere with ascertaining the reliability and validity of a test? How might you control for this error?
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Solution Summary
This solution describes some types of errors that are obtacles to the reliability and validity of a test. It also explains how one may control for these errors.
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A test is considered reliable if we get the same result repeatedly.Generally reliability will be higher when little time has passed between tests. To determine test -retest reliability (the reliability used to assess the consistency of a test across time) a test is given twice at two different points in time. If too much time has passed between tests then it would be difficult for researchers to determine test-retest reliability and there may be some confusion as to the validity of the test. In order to control for this type of error , little time should pass between the administration of the two tests. It would be difficult to ...
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