![]() ![]() It refers to the degree to which scores from a particular test are consistent from one use of the test to the next.Reliability, which means consistency or stability in language assessment, is most simply explained with reference to classical test theory, which posts a true score that an examinee would obtain on a test that was a perfectly reliable measure of an attribute. ![]() In large-scale testing, reliability is a major issue, but it also holds relevance in the classroom. It can be internal (the questions in the test) or external (the context of the testing situation). Important Points Reliability could be described as the consistency of an assessment. Reliability is the ability of the test to be repeated and yield consistent results. The validity of inferences made depends on the assessment having a degree of reliability. ![]()
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