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Table 2 Model performance in discrimination between different proficiency levels measured as the area under the ROC curve

From: Estimating educational outcomes from students’ short texts on social media

  Level 1 Level 2 Level 3 Level 4 Level 5 Level 6
Bellow level 1 0.573 0.665 0.774 0.870 0.951 0.987
Level 1   0.604 0.723 0.833 0.930 0.971
Level 2    0.621 0.748 0.864 0.919
Level 3     0.649 0.797 0.889
Level 4      0.666 0.770
Level 5       0.571