The controversy about statistical significance vs. scientific relevance is
more than 100 years old. But still nowadays null hypothesis significance
testing is considered as gold standard in many empirical fields from economics
and social sciences over psychology to medicine, and small p-values are often
the key to publish in journals of high scientific reputation. I highlight,
illustrate and discuss potential pitfalls of statistical significance testing
on three occasions.Comment: 16 pages, 2 figure