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Moderation: A key to ensuring reliable and valid scoring

Course video 24 of 30

Last week we focused on assessments that could be scored against agreed correct answers. We will now look at judgement-based assessments. The main assessment method used in teaching has changed from objective-style to using judgement-based assessment. This change has brought forward some new issues for us to consider. We will introduce you to challenges that are inherent in designing and evaluating student performance in open-ended formats in the first lecture. In the next two lectures we will focus on two assessment tools that are often used under judgement-based conditions: the rubric and the essay. In the last lecture, we will explore the concepts of moderation and inter-rater reliability. The topics for this week require you to grapple with notions of accuracy, quality, reliability, validity, and error. By the end of the week you should be able to design a valid and reliable assessment task and corresponding marking scheme (rubric).

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