Theuns Kotze's Page

Dear stats. boffins As I understand it, statistical significance tests (and others forms of statistical inference such as confidence intervals) assume, and thus require, random sampling or at least randomisation of respondents across experimental conditions. However, in my discipline, Marketing Management, we typically conduct large sample (n > 200), non-experimental survey studies based on non-random, non-probability samples. The reason for this unfortunate state of affairs is simple: it is…See More

This is a group for users of my textbooks (and anyone else really) to discuss the books, post questions and so on.See More