A variable is an event, idea, value or some other object or category that a researcher or business can measure. Variables can be dependent or independent. Dependent variables vary by the factors that ...

Setting event literature has generally failed to address issues of concern in the measurement and control of the three terms of the operant, including antecedents, behaviors, and consequences. We ...

The second in a series from Charles Murray. Marital status is a standard variable for many social policy analyses. A person’s marital status provides crucial information about his or her position in a ...