Table 2.

Description of E-factors.

E-factors	Variancea (%)	Description
E1	56	Captures overall school performance as the loadings were similar across all subjects; higher the E1 score, better the individual in all the grades
E2	13.5	Captures the difference between language and math performance; higher the E2 score, better the individual in language relative to math
E3	10.5	Captures the difference between oral and written grades in Danish and English; higher the E3 score, better the individual in oral exams relative to written exams
E4	8.5	Captures the difference between Danish and English performances; higher the E4 score, better the individual in Danish relative to English

^aThe variance estimate is the proportion of the variance explained individually by the E-factors in the school grades.

The factors E2, E3 and E4 all capture only the relative performance hence should be interpreted carefully. For example, E2 informs only if an individual is better in language relative to math. E2 score can be high even when the individual is poor overall in both language and math (in comparison to others), but worse in math compared to language.