If the scale is reliable, then when you put a bag of flour on the scale today and the same bag of flour on tomorrow, then it will show the same weight. A test with poor reliability might result in very different scores across the two instances. If you were to deliver an assessment with high reliability to the same participant on two occasions, you would be very likely to reach the same conclusions about the participant’s knowledge or skills. This blog post explains what reliability is, why it matters and gives a few tips on how to increase it when using competence tests and exams within regulatory compliance and other work settingsĪn assessment is reliable if it measures the same thing consistently and reproducibly. Reliability (how consistent an assessment is in measuring something) is a vital criterion on which to judge a test, exam or quiz.
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