This report provides the technical details on the modelling aspects of identifying significant drivers for the reasons for using certain types of training and for the choice of training types. The employed data is from the 2005 Survey of Employer Use and Views of the VET system (SEUV). The data has previously been analysed in NCVER (2006). This report focuses on two broad research questions. First, what are the drivers of the reasons (or what explains the reasons) employers cite for using particular training types. Second, what explains the observed choice employers make in choosing between nationally recognised training and unaccredited training. These two research questions are analysed in turn in sections three and four. (Contains 11 tables.) [Funding for this document was provided through the Australian Department of Education, Science and Training. This document was produced by the authors based on their research for the report "Reasons for training: Why Australian employers train their workers," and is an added resource for further information. For the main report, see ED507236.]