The results of the study (also conducted by Hajdeja Iglič, Franc Mali, Uroš Matelič and Petra Ziherl) presented in this lecture confirm other empirical results obtained by sociological research on the activities of research groups (e.g., Hemlin, Allwood in Martin 2004): creativity or research productivity of young researchers is strongly influenced by intrasocial factors such as autonomy, flexibility, cooperation, etc. More precisely, this study confirms that, at the micro level, the relationships among the researchers, especially between the young researcher and his/her mentor, play an important role for the young researcher's scientific performance. This is especially true in the phase of the socialisation and professionalisation of young scientists (during the Ph.D. research).