[Is systemic psychotherapy research possible?]

With the growing importance of systemic therapies the interest in quality evaluation, at the one hand, and in a deeper understanding of therapy processes, at the other, becomes more and more important. Therefore the question is raising how to do psychotherapy research for systemic therapies in an adequate manner. Some possibilities will be discussed. As we will see, the existing field of process research offers a lot of theoretical conceptualizations and methodological tools for the understanding of dynamical patterns in psychotherapy. An example for the single case microanalysis of client-therapist-interaction in a solution-oriented brief therapy illustrates one of several different ways in system-oriented psychotherapy research.