Variables in psychology play a critical role in the research process. By systematically changing some variables in an experiment and measuring what happens as a result, researchers can learn more ...

Controlled variables – The variables that scientists keep the same during an experiment to make sure that a test is fair. Dependant variables – The variable that a scientist measures or observes.

The main variables in a science experiment are the independent variable, the dependent variable and the control variables. The independent variable is what we change or control in the experiment.

I introduce the notion of a 'control variable' which gives us a way of seeing how mental causation could be an unproblematic case of causation in general, rather than being some sui generis form of ...

We submit our recent systemic democratic peace research to the control variable doctrine of James Lee Ray, as codified in his 2003 treatise. In particular, we seek to determine whether international ...