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 ...

For more than a decade, the Farm Journal Test Plots has varied corn populations and nitrogen rates to respond to natural management zones in the field. In 2012, the crew added variable-rate irrigation ...

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 ...

Psychology is a relatively young science. The first person to call himself a psychologist, Wilhelm Maximilian Wundt, began his work in the 1860s in Germany and established the first-ever psychology ...