The article provides an overview of current research with the " Psychothera
py Process Q-Sort" by Enrico Sones and presents the application of a German
version developed by the authors. The method could be used reliably and pr
oved a proper instrument for describing psychotherapeutic processes. Compar
ison of sessions from the beginning and termination phases of a psychoanaly
tic therapy demonstrated clinicaly relevant differences between the two pha
ses of treatment.