Participants improved most when smelling coriander and plastic, yet showed no improvement in mushroom and rubber scents.
Sucking behavior improved most with the gato box.
Intriguingly, the pupils whose results improved most markedly were the poorest.
Children have been rewarded for being most improved, most cheerful and most helpful.
Only in three countries have the outlooks improved; most have been cut by a few percentage points.
The school has been monitored by the state since 1989 because of low student performance, and while it has improved, most students still read below grade level.
It suggests that the education systems that perform best and have improved most, such as in Finland and Singapore, put particular emphasis on research training for teachers.
A 2001 study published in the Journal of Counseling Psychology found that patients improved most dramatically between their seventh and tenth sessions.
Sir Martin Sorrell, WPP's notoriously cautious chairman, said that the company's businesses in Asia, Latin America, Africa and the Middle East improved most, with revenues rising by 22%.
In his three backup seasons, Rodgers improved most in those areas, McCarthy said, to where he now ranks "at the top of all of them".
In contrast, the constituencies whose scores improved most were almost all in the north of England, with the three biggest improvements in Sedgefield in County Durham, north Lincolnshire and Blaenau Gwent.
