There Are Different Ways a Research Can Analyze for Differences

Multiple Choice

There are different ways a research can analyze for differences between groups discussed in the textbook. Which of the following is NOT one of those ways?

A) differences between 2 groups
B) differences between 3 groups
C) differences between 2 research projects
D) differences between averages of 2 variables in one group
E) differences between more than 3 groups