By: Christian Jarrett. Published by the British Psychological Society:
Psychology has a serious problem. You may have heard about its over-dependence on WEIRD participants - that is, those from Western, Educated, Industrialised, Rich Democracies.
More specifically, as regular readers will be aware, countless psychology studies (especially those with a social bent) involve undergraduate students, often those studying psychology.
Apart from the obvious fact that this limits the generalisability of the findings, Edward Witt and his colleagues provide evidence in a new paper for two further problems, this time involving self-selection biases.