Human Growth and Development / Unit 1 HGD 0050 short lesson, about 20 seconds
WEIRD Samples
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The idea
Much psychology rests on WEIRD samples, people from Western, educated, industrialised, rich and democratic societies, which limits how far findings generalise.
In practice
A finding from one country's university students applied to the whole world.
Where people slip
A representative sample reflects the population a conclusion is about. Babies across cultures, though, share a preference for infant-directed speech.
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