This is when you might need to use a non-parametric test to answer your statistical question. Non-parametric refers to a type ...

For example, responses to three related survey questions from the same group of individuals. These scenarios are different in reality, but are actually variations on the same statistical question that ...

For example, among other topics, high school teachers should be able to formulate statistical questions, make comparisons between distributions of variables, and understand how to quantify and ...

Does a Statistical Finding Matter? Two Critical Questions to Ask In our book, Straightforward Statistics, Sara Hall and I introduce the concept of statistics by discussing two basic ways that we ...