Digitization of student's personal characteristics: statistical analysis of psychological tests results and the Spearman effect

In this work, a statistical analysis of the results of psychological testing is carried out in order to establish correlations between the results of surveys of respondents that were not grouped beforehand by some criterion. The goal is also to formalize the construction of patterns (i.e., combining respondents into groups according to their skill level in the following qualities) of typical distributions of quality indicators, which is important for interpreting test results by identifying subgroups and checking for them the Spearman's law of diminishing returns. The effect is that the correlation between responses in the worst group is higher than in the best group.