Science behind Keytosudy methodology

This is supposed to be a short post. Quite often I am asked regarding science behind keytostudy methodology. We (Anna and myself) have conducted statistical research with thousands of students, but we could never afford a “control” group receiving a “placebo” method. We did not have sufficient access to fMRI to make enough images of brains before and after learning keytostudy methodology. Therefore instead of focusing on success statistics I focus on other methods which inspired us.