Assessing psychological variables on mobile devices: an introduction to the experience sampling app .

The use of the Experience Sampling Method (ESM), which involves repeated assessments in people's daily lives, has increased in popularity in psychology and associated disciplines in recent years. A rather challenging aspect of ESM is its technical implementation. In this paper, after briefly introducing the history of ESM and the main reasons for its current popularity, we outline the experience sampling app which is currently being developed at the University of Vienna.