Harry, you're either a liar or you utterly fail to understand written English. There is nothing in any of those studies which states that a white helmet will help you avoid accidents. A white helmet is more visible and could (as the part of the study I quoted states) help you be more visible and reduce your chances of getting hit. You're clearly not understanding the difference here, and that's a real problem, especially if you're at all involved in rider training.
Let me repeat, since you're clearly not getting it. Wearing white or hi-viz garments or helmets generally makes you more visible to other motorists. That's a good thing, and it can help to keep them from hitting you. What those white or hi-viz garments won't do is help you avoid accidents. That implies that the garments are taking an active safety role, which they are not.
You are doing the people on this forum, your students, and yourself a disservice by spreading false information. You are going to get someone hurt or killed.
05Train, you are absolutely correct that the color of the helmet, the color or hi-viz quality of your torso, and the extra lighting you chose to put on the front and rear of the bike are PASSIVE and do not "help YOU avoid accidents." Rather, all these things, in some measure, reduce your risk because they "help OTHER MOTORISTS avoid an accident with you." It is anything but surefire, we all know. But if, on some occasion, they prevent another motorist from doing something stupid when I am also having a brain fart, they may save my life.
On another thread in this forum a rider posted a "safety slogan" I really like: "RIDE LIKE YOU ARE INVISIBLE." I would like to amend it to "RIDE LIKE YOU ARE INVISIBLE, BUT DON'T BE." Do what ever feels right for you in terms of all the gear stuff; do the swerves when you see a line of approaching traffic which could harbour a car ready to pass right into you or a car waiting to turn into your lane. BUT, in a small percentage of cases, you are STILL INVISIBLE. So you have to slow down, cover the brakes, and prepare to stop or swerve.
I think higher visibility gear and actively "showing" your bike can substantially decrease the number of times you have to take "emergency" action. If you still expect to take some action despite your efforts to make yourself visible, the "emergency" is often reduced to a hard action, because you anticipated the possibility. True "emergency" reactions often end badly.