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Used to describe a situation where marks or grades awarded to assessed work show very little variance from student to student, but are closely bunched within a few marks of one another. This could indicate either that the ability of the students within the group being assessed is fairly uniform, or, more worryingly, that the assessment may be invalid or unreliable. If there is bunching at the lower end of the marking scale, this may indicate a problem either with the selection and recruitment of students, or with the quality of the teaching, or with the effectiveness of the learning.

Subjects: Education.

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