A tool used to adjust examination scores aims to modify the distribution of grades. This adjustment typically occurs when a test is deemed excessively difficult, or the grading distribution is skewed lower than expected. For example, if a majority of students perform poorly on an exam, the scores may be adjusted upward to better reflect student understanding or to align the grade distribution with institutional standards.
The practice of adjusting grades seeks to address issues related to test validity and fairness. It can compensate for poorly worded questions, unforeseen difficulties in the exam content, or inconsistencies in grading. Historically, such adjustments have been implemented to ensure that student performance is accurately evaluated and to prevent unintended consequences such as a disproportionately high failure rate. Furthermore, it can mitigate student discouragement and promote a more positive learning environment.