Well the entrance tests for Faculty of Philosophy that my close friend attended have been in the form of interview and they mostly asked about what authors did you read, what were they trying to say and such. It's actually not that complicated for people invested in some area (of science, politics, culture) to spot good candidates when you give them a chance.

Sadly, the quality of education in Czech Republic have degraded significantly in capitalism. We have gotten rid of Marxism-Leninism but have also let significantly more people in and set the incentives to produce a lot of graduates with much less knowledge, with rest of the bulk being thrown out after 2 years so that the university gets maximum state support.

We are probably going to end up with student loans and lower government participation, which will ruin our education system completely.