This is the 10955th most frequent Catalan word.
selectiu
Selective.
Here, 'selectiu' is used as an adjective to describe the process as having selection criteria.
Aquest procés és altament selectiu.
This process is highly selective.
In this case, 'selectiu' indicates that the courses have been chosen for their quality or relevance.
El programa educatiu ofereix un conjunt selectiu de cursos.
The educational program offers a selective set of courses.
Here, 'selectives' modifies 'proves' (tests), implying that the tests are used to select or filter candidates based on some criteria.