Students from 4 universities, regardless of field of study and academic year

At the beginning of the summer semester of the 2020/2021 academic year, stress levels as well as symptoms of anxiety and depression were assessed in students at four universities.

The PSS-10 is widely used for measuring psychological distress. It contains 10 questions on a five-point scale from 0 to 4. The higher the score, the greater the feeling of stress.

The BDI-II is a tool used to determine the degree of intensity of depressive symp-toms. The 21-item questionnaire consists of two parts: emotional and somatic. Depending on the number of points obtained, the severity of depression can be assessed. A range of 0-10 points indicates no depression, 11-27 indicates moderate mood disorder, and 28 indicates major depressive disorder. The cutoff for dividing patients into depressive and non-depressive subgroups was a score of 10, following the guidelines given by Beck et al.

The survey contains five sections on the impact of e-learning on various aspects of life. The survey responses were structured on a 5-point Likert scale from 1 to 5, where 1 refers to "strongly disagree" statement and 5 to "definitely agree". Questions were grouped into areas: Social life (3 questions), Education skills (4 questions), Eco-nomic field (2 questions), Nutrition habits and drugs (2 questions). The questionnaire showed satisfactory reliability with a Cronbach alpha of 0.82.