In science, a variable is something that can be changed, measured or controlled in an experiment. Scientists look at variables to understand how they affect things. A variable is any one of the things ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Suppose you are about to meet a person for the first time and want to predict that person’s thoughts, feelings, and behaviors in a variety of settings over the next several years. What single piece of ...