This contribution presents the research design of an ongoing study of parameters influencing perception of physics demonstrations by different communities of people involved in the upper secondary school (SS) education. Its aim is to determine such parameters in various groups of people (SS teachers, SS students, pre-service physics teachers, pre-service physics teacher trainers) and to compare these parameters between different groups.
The research design comprises of a video-study using high-inference rating scales. Item response theory (IRT) will be employed to analyse the data.