Database

! NOTE: The data files are in SPSS format. Therefore you are supposed to have SPSS software installed on your PC in order to use them. If you are interested in using these files, please do the following:

1. Save the file/s you want on your PC's hard disc,

2. Then, open the file/s under the SPSS software,

3. Enjoy working!

(If any problem with understanding of the data appear, please contact Assist. Prof. Ivan Vojnov: voynov@abv.bg )