I am only using SPSS for almost half a year now, and I can say that people who are able to use this program properly can benefited a lot. Not only for research purpose, but it also has a big potential for other purposes. Business is one of those, for sure. I am interested to learn more about it, but most importantly, I also have to learn about the statistical stuff as well, as SPSS is only a tool to analyze statistics data.
