John is a retired academic survey researcher with almost 50 years of experience in this field. The page is aimed to share John's expertise with researchers, students and others doing, or learning about, survey research and the analysis of survey data. The author using and teaching of SPSS since 1972. Among other things, you may get trained at Survey Analysis Workshop (self-teaching course using SPSS for Windows) there.

Link added: Feb. 4, 2015