人越少分越高

" Two behavioural researchers, Stephen Garcia at the
University of Michigan and Avishalom Tor at the
University of Haifa in Israel, looked at the results of
the SAT university entrance examination in America
in 2005...
They found that scores fell as the number of people
in the examination hall increased." 090711 'Economist'

試場人多會造成心理錯覺，
以為對手多贏面自然低，於是動力減弱。
想人做得好d，就要俾佢覺得有機會贏。