Aztəhsil.az website reports based on Oxu.az's interview:
- Because exam participants answer the questions considering factors such as time limit, exam environment, and psychological tension, while those who review the tests later conduct evaluations outside of those conditions.
- We would like to note once again that exam variants for different zones are formed using the same principle based on special software and a standard algorithm. More specifically, the distribution of task difficulty levels is the same in each variant.
- Statistical analyses conducted over many years show that the correlation coefficient between test blocks used in different zones is higher than 0.9. This indicates that the difficulty level of the exam variants is statistically equivalent and that the differences remain only within the acceptable statistical error.