The aim of the research is to present the application of calibration approach in the tracer study of the Poznań University of Economics and Business graduates conducted within the ”Staff for Economy” project and partnered by the Statistical Office in Poznań. The obligation to carry out tracer studies was imposed on universities by the legal acts concerning the process of monitoring graduates professional careers. The most important problem in the research was nonresponse of monitored graduates, which influenced the results obtained due to non-random error.
The use of calibration applied in representative surveys to correct weights resulting from the sampling scheme showed, by choosing the appropriate auxiliary variables, how the negative impact of the lack of response can be reduced in full graduates tracer study. The article presents in detail the scope of research and theoretical basis of calibration. It describes also the use of auxiliary variables in the creation of calibrated weights which could then be included in the tabulation process and graphical presentation of results. Additionally, the article raises the issues of assessing the precision of estimation results.