Americans and students over-represented in research
In 1992, 64% of the 56,000 psychologists were American.
94% of published studies are estimated to be conducted in North America
Henrich et al 2010: A review find: 68% of research ppt came from US & 96% from industrialised nations.
Another review found that 80% of research ppt were undergraduates studying psychology (Arnett 2008)
Americans and students over-represented in research