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Psychology

Teacher Expectations and the Pygmalion Effect

Quick fact

In a famous 1968 study, Rosenthal and Jacobson falsely told elementary school teachers that certain students were 'intellectual bloomers'—and those students later showed significantly greater IQ gains than their peers, purely because of their teachers' expectations.

Why this is interesting

Imagine a teacher who tells you that you're not good at math. Could that belief alone, without any evidence, actually make you perform worse? That's the power of the Pygmalion effect.