Question #12 - 4 pts content Recall what makes a study causal (i.e. systematic manipulation of an independent variable, random assignment to levels of the IV… review chapter 1 if needed). How could you examine breaking time in a causal / experimental research study (note it does not need to include the type of driver variable – just use the braking time variable from this scenario plus another variable you could envision manipulating that may affect braking time). Clearly state your two variables, how you’d operationally define them, which one you’d manipulate, and how you’d manipulate it.