I have suggested that if you don’t understand something I write, go to any search engine and find something better. In Chapter 2 I admitted that it was pretty easy to define a dependent variable, but the definition of an independent variable is a bit more complicated. Go to the Internet and type in “What is an independent variable.” Read at least five of the links that come up (not necessarily the first five) and write down the best definition that you find—the one that is clearest to you.