Aims and benefits

This study pursues the following objectives:

The measurement instruments used to assess mental health will be reviewed with regard to their quality and cultural comparability.
In this subproject, new measurement instruments were developed that allow mental health and other characteristics relevant to the IMPROVE intervention to be recorded via EMA. The quality and cultural comparability of these measurement instruments has already been examined in a pilot study and will be further examined in this study.
It will be investigated whether the use of these EMA measurement instruments can better reflect the success of the intervention.

Study procedures

In the EMA study, interviews lasting no more than 10 minutes will be conducted daily for one week at a total of four different time points. These four weeks of interviews are to take place in parallel with the interviews of the IMPROVE program.


Before the start of the IMPROVE program
After the participants have received the access data and information for the cell phone study, the first survey week can start directly.
10 weeks
After the IMPROVE program
After the IMPROVE program has been completed, or after 10 weeks for participants in the control group, the second survey week can begin.
6 months
Third survey week
6 months after the second survey week, the third survey week can start.
6 months
Fourth survey week
6 months after the third survey week, the fourth survey week can start.


Ruhr-Universität Bochum
Psychologische Methodenlehre
Universitätsstr. 150
44780 Bochum



Frau Prof. Dr. Maike Luhmann, Ruhr-Universität Bochum
Herr Prof. Dr. Jürgen Margraf, Ruhr-Universität Bochum