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The effect of sample size on increased precision in detecting errant marking
During the marking process, all examiners and markers send samples of their work to their team leaders for re-marking, to ensure that their marking is sufficiently consistent with the standard set by the most senior examiner. However, there is very little consensus about the number of scripts required to enable the team leaders to make that judgement. The purpose of this project was to investigate whether the size of the sample had any effect on the quality of marking.