Based upon the recent discussion on integrative approaches in psychotherapy research, the last two volumes of the PPmP were bibliometrically analyzed. The articles of authors which belong to different disciplines like psychosomatic or medical psychology were compared with respect to the word and speech statistic, leading representatives and the reception of the international state of research. The interdisciplinary standard of the PPmP has proven successful in view of the impact of the journal within the Scientific Community and among the flagship journals of the field. The study shows that the plurality of methodological approaches and interdisciplinarity provides an important criterion for the quality of psychotherapy research and for the corresponding publication institutions. Related to scientific quality standard the PPmP has found good impact in the scientific community but there are points to be changed.