Abstract: In practice every graduate in psychology is expected to be competent in writing psychological reports. First we discuss the basic determinants of the acquisition of this competence. Then we describe how these basic determinants are taken into consideration in the study. The effects of several measures to improve this training are tested. They relate to structure, contents and realization in the sequence of lectures and seminars. Three hypotheses on the effectiveness of our training were tested by evaluation of the examination reports written in 5 consecutive years (N1 = 229, N2 = 119). The results show that a systematic acquisition of knowledge and competence can be supported by different didactic aids as individual feedback, checklists with rules on how to proceed and also checklists for mistakes.