"I really want to, but I can't." An effect measurement of 20 neurofeedback treatments on intermediate vocational training students who fall under the theta/beta protocol, as measured by changes in the Bourdon-Wiersma Test, The Outcome Rating Scale, and the tendency of obtained marks.

diagnosed with AD(H)D;
pupil of Alfa-college location Hoogeveen;
born as from 1990;
pupils who fall under the theta/beta protocol (abnormality in theta/beta ratio in QEEG)
pupils who are willing to invest 30 minutes twice a week for 10 weeks;
pupils who are motivated.

Pupils with braindamage, epilepsy or psychotic disorder;
no pupil of Alfa-college location Hoogeveen;
pupils of Alfa-college Hoogeveen born before 1990;
parent(s) and/or guardian/s have not signed the application form;
pupils who show no abnormalities in the QEEG;
pupils that fall under the beta 1 inhibition protocol;
pupils who are not willing to invest 30 minutes twice a week for 10 weeks;
pupils who are not motivated.