Pygmalion in the Classroom

Rosenthal and Jacobson's finding that randomly labeled bloomers gained more, as teacher expectation became outcome.

Specifications & Metrics

Teachers were told a test identified certain pupils as about to bloom; the pupils had actually been chosen at random.
Labeled pupils gained more in measured IQ over the year, with the strongest effects in the youngest grades.
The study founded expectation-effects research, later elaborated in Rosenthal's expectancy statistics.