The effectiveness of the concept is being investigated in Anna Bauer's doctoral dissertation entitled "Experimental competence of (physics) students". The aim is to develop a model for experimental competence at university level that makes it possible to measure qualitative differences in students' behaviour when conducting experiments. Based on the developed level model, observation forms are to be developed in the future that can be used for transparent feedback on the actions shown by students during experiments or for action-orientated examinations.