Changing things almost always improves results, that is the first rule you need to remember during education testing. Most of the improvements disappear when yo

Changing things almost always improves results, that is the first rule you need to remember during education testing. Most of the improvements disappear when you make it standard. This effect likely comes from novelty being more interesting so kids gets more alert, but when they are used to it then it is the same old boring thing and education results go back to normal. Of course things can improve or get worse, but in general it is really hard to say, you need to have a massive advantage over the standard during testing to actually get any real improvements, most of the time you just make things worse.