Well if your hypothesis is that it's a problem then you shouldn't be comparing it against a known problem. You will either end up showing it's not as problemati

Well if your hypothesis is that it's a problem then you shouldn't be comparing it against a known problem. You will either end up showing it's not as problematic, which doesn't say much; or you end up with a negative result, meaning you can't really tell either way. Besides this isn't an either/or problem, we should aim to remove all forms of distraction, not go for the least bad choice. Driving safely takes precedence over avoiding traffic or enjoying music.