It’s well-known that psychology has a problem with generalisability. Studies overwhelmingly involve “WEIRD” participants: those who are western and educated, from industrialised, rich and democratic societies. And while there is increasing recognition that other populations need better representation in research, many psychologists still often draw sweeping conclusions about humanity based on results from a narrow portion of the world’s population.
A new study published in Social Psychological and Personality Science suggests that this problem may have had another, more insidious effect. The authors argue that because of psychology’s traditionally narrow focus, we’ve ended up implicitly assuming that results of studies on WEIRD groups — particularly white Americans — are somehow more universally generalisable than those from other populations.
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