Story perspectives

Group A High Schools Boost Top-Half CSAT Scores, Gap Persists

4/24/2026

Summary

Story summary

The KDI report found Group A high schools lifted CSAT scores by 3.8-4.7 points.
The rise applied only to the top-50 % of students, whose math scores rose eight points and foreign-language scores over five.
The bottom-50 % saw no CSAT gains in math or foreign language, with Korean scores staying flat.
KDI blamed the gap on teacher competence, school climate and rule enforcement, and urged learning atmosphere, guidance staff, and rights-protecting rules.

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Story summary

The KDI report found Group A high schools lifted CSAT scores by 3.8-4.7 points.
The rise applied only to the top-50 % of students, whose math scores rose eight points and foreign-language scores over five.
The bottom-50 % saw no CSAT gains in math or foreign language, with Korean scores staying flat.
KDI blamed the gap on teacher competence, school climate and rule enforcement, and urged learning atmosphere, guidance staff, and rights-protecting rules.