So basically this trial tells children they can think themselves well, but it will only work if they don't outwardly express any ill feelings. Then gives them a patient survey asking them how well they feel, AFTER they have been taught that they are not allowed to answer any of these questions in the negative because if they do, it will be their fault that they are still ill. So of course they score higher, because they are basically told that if they don't, it is their fault that they are sick and they are making themselves ill!
Even the measure of school attendance is not objective, because you have taught them that they are not allowed to think themselves ill and any ill feelings must be "stopped" and basically ignored. So as any kid knows, you don't usually get out of going to school unless you are sick. They then have no choice but to go to school, no matter how they feel, in order to stick with the training to believe themselves well, and that any ill effects from that forced attendance must be ignored.
In other words, you are outright brainwashing them to give the answers you want.
Why is a patient reported survey even a part of these studies? There are so many other actually objective ways to measure baseline and outcomes.
Yes they have some value in conjunction with other things, but it is a well known matter of fact that self reported patient surveys are one of the least objective measures of any study to begin with because they can me greatly affected by positive thinking related to beliefs that you are actually receiving treatement. You can see this in many placebo controlled studies where patients believing they are receiving a new treatment rate their abilities higher on a patient survey. It is called the placebo effect.
Also, did I misread or are they calling this a controlled study? Maybe I am misunderstanding something about what that means, but what I was always taught in science class was that a truly controlled study involved both the control group and the active group receiving something new that they hadn't before and no one knowing who was and was not actually fetting the true treatment. This is used as a means of making sure the improvements reported in a study were NOT just the result of a placebo affect.
They didn't use a placebo control group in this study. They gave the control group the standard medical care, which unless both groups were entirely all newly diagnosed patients, they would have already had those treatments before and would already know that was just standard care.
I really do struggle to understand how these trials keep getting any recognition when they are so completely and obviously flawed.