Abstract
The method of calculating and providing standard scores in the mathematics area of CSAT(college scholastic ability test) has undergone various changes since 1999. Recently, the standard score calculation method in a common+elective structure has been applied since the 2022 CSAT in accordance with the purpose of integrating liberal arts and natural sciences in the 2015 revised curriculum. However, apart from the purpose of this integration, many concerns have been raised due to low understanding of the calculation method. In this study, the relationship which is the core of the standard score calculation method in the common+elective structure, between ‘average and standard deviation of the raw score of the common subject’ and ‘average and standard deviation of the adjusted score of the elective subject’ was examined. In addition, using virtual data, the standard score calculation method in the mathematics area of the 2021 and 2022 CSAT was compared. Based on this, training materials that can enhance teachers' understanding of the standard score calculation method were developed, and the effectiveness was verified by conducting training for 10 high school teachers. Finally, the importance and implications of improving teachers' understanding of the standard score calculation method were discussed.
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