Robert Rosenthal and Lenore Jacobson's study showed that, if teachers were led to expect enhanced performance from children, then the children's performance was

Robert Rosenthal and Lenore Jacobson's study showed that, if teachers were led to expect enhanced performance from children, then the children's performance was enhanced. https://en.m.wikipedia.org/wiki/Pygmalion_effect https://en.m.wikipedia.org/wiki/Pygmalion_effect