Select a dependent variable from one of your proposed research topics that is a construct. Provide an operational definition of this construct. For example, I hypothesized that children who play violent video games will have more incidences of violent behavior than children who do not play these games. My dependent variable, aggression, is a construct and needs an operational definition. I could define aggression by the number of incidences of physically violent or threatening behavior. In this case, I would also need to define violent behavior. I could operationally define violent behavior as physical assault (pushing, slapping, hitting, punching, kicking, pinching pulling hair, hitting or stabbing with an object), threatening with a weapon (e.g., gun, knife, or any object that could be used to harm).