Treatment Phase A total of 20 treatment sessions were done for each ADHD
participant. Each child received one 30-minute session everyday except for weekends. The
treatment plan plan was divided into two phases: 1)treatment by the experimenter in laboratory only,
for the first 10 sessions and 2) treatment partly in the laboratory and partly at the child’ s home for
the final 10 sessions. Phase 2 contained two consecutive sub-phases: (a) treatment by the
experimenter in the laboratory only in the morning, and in the child’s home in the evening, for the
first 5 day; followed by (b) treatment by the experimenter in the laboratory in the morning, and by
the child’s parents at home in the evening, for the final 5 day.