--Original published at Caroline's Blog
The Mythbusters mini-episode, “Do Hands Free Devices Improve Driving Safety?”, uses many methods of experimental design in a successful way. Having many different tests in the beginning part of the experiment when developing a hypothesis was very smart because it allowed them to build up and gather ideas to create an experiment. At first it did not seem as if it would be a good experiment due to the lack of participants. This changed when the two men brought in 30 more volunteers. Unfortunately, there was still a lack of control in the experiment. In the beginning, the two men tested the experiment using real cars on a course in the real world with hands held devices. Then the volunteers were in a simulation where they were guided and distracted by hands free devices. To make this experiment more successful, there could have possibly been more volunteers on the real-life course, although this could have been a potential safety risk. They were successfully able to come to a conclusion that hands-free devices are not safer than handheld devices after following the steps of experimental design well. However, their lack of participation across both the real-life driving and the simulation driving put them at a disadvantage. Their results were most likely affected by this which could make their conclusion incorrect. To improve the results for this experiment to get a more precise and accurate conclusion, the two men could acquire more participants for their experiment in hopes of creating a stronger argument and conclusion. Overall, the men did well with following the processes of experimental design.